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Finding the Fourth Proportional to 690,008.92, 952,202.12 and 384,084.86

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Solution

The fourth proportional to 690,008.92, 952,202.12 and 384,084.86 is: 530,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,008.92 : 952,202.12 = 384,084.86 : x
  2. Step 2: Convert to fraction form
    690,008.92/952,202.12 = 384,084.86/x
  3. Step 3: Cross multiply
    690,008.92x = 952,202.12 × 384,084.86
  4. Step 4: Simplify right side
    690,008.92x = 365,726,411,270.47
  5. Step 5: Solve for x
    x = 365,726,411,270.47/690,008.92
  6. Step 6: Final answer
    x = 530,031.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.