Home / 658,426.89-908,702.85-371,965.43

Finding the Fourth Proportional to 658,426.89, 908,702.85 and 371,965.43

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Solution

The fourth proportional to 658,426.89, 908,702.85 and 371,965.43 is: 513,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,426.89 : 908,702.85 = 371,965.43 : x
  2. Step 2: Convert to fraction form
    658,426.89/908,702.85 = 371,965.43/x
  3. Step 3: Cross multiply
    658,426.89x = 908,702.85 × 371,965.43
  4. Step 4: Simplify right side
    658,426.89x = 338,006,050,009.10
  5. Step 5: Solve for x
    x = 338,006,050,009.10/658,426.89
  6. Step 6: Final answer
    x = 513,353.96

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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.