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Finding the Fourth Proportional to 677,211.75, 934,545.94 and 371,305.13

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Solution

The fourth proportional to 677,211.75, 934,545.94 and 371,305.13 is: 512,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,211.75 : 934,545.94 = 371,305.13 : x
  2. Step 2: Convert to fraction form
    677,211.75/934,545.94 = 371,305.13/x
  3. Step 3: Cross multiply
    677,211.75x = 934,545.94 × 371,305.13
  4. Step 4: Simplify right side
    677,211.75x = 347,001,696,141.68
  5. Step 5: Solve for x
    x = 347,001,696,141.68/677,211.75
  6. Step 6: Final answer
    x = 512,397.63

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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.