Home / 672,158.20-1,008,237.30-423,326.20

Finding the Fourth Proportional to 672,158.20, 1,008,237.30 and 423,326.20

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Solution

The fourth proportional to 672,158.20, 1,008,237.30 and 423,326.20 is: 634,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,158.20 : 1,008,237.30 = 423,326.20 : x
  2. Step 2: Convert to fraction form
    672,158.20/1,008,237.30 = 423,326.20/x
  3. Step 3: Cross multiply
    672,158.20x = 1,008,237.30 × 423,326.20
  4. Step 4: Simplify right side
    672,158.20x = 426,813,264,907.26
  5. Step 5: Solve for x
    x = 426,813,264,907.26/672,158.20
  6. Step 6: Final answer
    x = 634,989.30

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Half scale
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Double scale
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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.