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Finding the Fourth Proportional to 637,702.40, 880,027.02 and 351,221.82

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Solution

The fourth proportional to 637,702.40, 880,027.02 and 351,221.82 is: 484,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,702.40 : 880,027.02 = 351,221.82 : x
  2. Step 2: Convert to fraction form
    637,702.40/880,027.02 = 351,221.82/x
  3. Step 3: Cross multiply
    637,702.40x = 880,027.02 × 351,221.82
  4. Step 4: Simplify right side
    637,702.40x = 309,084,691,613.58
  5. Step 5: Solve for x
    x = 309,084,691,613.58/637,702.40
  6. Step 6: Final answer
    x = 484,684.85

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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.