Home / 672,221.40-1,008,332.10-298,282.20

Finding the Fourth Proportional to 672,221.40, 1,008,332.10 and 298,282.20

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Solution

The fourth proportional to 672,221.40, 1,008,332.10 and 298,282.20 is: 447,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,221.40 : 1,008,332.10 = 298,282.20 : x
  2. Step 2: Convert to fraction form
    672,221.40/1,008,332.10 = 298,282.20/x
  3. Step 3: Cross multiply
    672,221.40x = 1,008,332.10 × 298,282.20
  4. Step 4: Simplify right side
    672,221.40x = 300,767,517,118.62
  5. Step 5: Solve for x
    x = 300,767,517,118.62/672,221.40
  6. Step 6: Final answer
    x = 447,423.30

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Double scale
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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.