Home / 672,078.20-1,008,117.30-423,246.20

Finding the Fourth Proportional to 672,078.20, 1,008,117.30 and 423,246.20

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Solution

The fourth proportional to 672,078.20, 1,008,117.30 and 423,246.20 is: 634,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,078.20 : 1,008,117.30 = 423,246.20 : x
  2. Step 2: Convert to fraction form
    672,078.20/1,008,117.30 = 423,246.20/x
  3. Step 3: Cross multiply
    672,078.20x = 1,008,117.30 × 423,246.20
  4. Step 4: Simplify right side
    672,078.20x = 426,681,816,379.26
  5. Step 5: Solve for x
    x = 426,681,816,379.26/672,078.20
  6. Step 6: Final answer
    x = 634,869.30

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Half scale
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Double scale
Find fourth proportional to 672,079.20, 1,008,118.80 and 423,247.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.