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Finding the Fourth Proportional to 475,897.68, 656,759.34 and 284,874.17

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Solution

The fourth proportional to 475,897.68, 656,759.34 and 284,874.17 is: 393,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,897.68 : 656,759.34 = 284,874.17 : x
  2. Step 2: Convert to fraction form
    475,897.68/656,759.34 = 284,874.17/x
  3. Step 3: Cross multiply
    475,897.68x = 656,759.34 × 284,874.17
  4. Step 4: Simplify right side
    475,897.68x = 187,093,768,588.45
  5. Step 5: Solve for x
    x = 187,093,768,588.45/475,897.68
  6. Step 6: Final answer
    x = 393,138.64

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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.