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Finding the Fourth Proportional to 670,045.92, 924,728.40 and 383,606.88

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Solution

The fourth proportional to 670,045.92, 924,728.40 and 383,606.88 is: 529,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,045.92 : 924,728.40 = 383,606.88 : x
  2. Step 2: Convert to fraction form
    670,045.92/924,728.40 = 383,606.88/x
  3. Step 3: Cross multiply
    670,045.92x = 924,728.40 × 383,606.88
  4. Step 4: Simplify right side
    670,045.92x = 354,732,176,371.39
  5. Step 5: Solve for x
    x = 354,732,176,371.39/670,045.92
  6. Step 6: Final answer
    x = 529,414.72

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Similar ratio
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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.