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Finding the Fourth Proportional to 637,740.92, 880,049.23 and 396,018.29

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Solution

The fourth proportional to 637,740.92, 880,049.23 and 396,018.29 is: 546,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,740.92 : 880,049.23 = 396,018.29 : x
  2. Step 2: Convert to fraction form
    637,740.92/880,049.23 = 396,018.29/x
  3. Step 3: Cross multiply
    637,740.92x = 880,049.23 × 396,018.29
  4. Step 4: Simplify right side
    637,740.92x = 348,515,591,180.42
  5. Step 5: Solve for x
    x = 348,515,591,180.42/637,740.92
  6. Step 6: Final answer
    x = 546,484.60

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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.