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Finding the Fourth Proportional to 510,613.34, 704,640.47 and 281,165.85

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Solution

The fourth proportional to 510,613.34, 704,640.47 and 281,165.85 is: 388,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,613.34 : 704,640.47 = 281,165.85 : x
  2. Step 2: Convert to fraction form
    510,613.34/704,640.47 = 281,165.85/x
  3. Step 3: Cross multiply
    510,613.34x = 704,640.47 × 281,165.85
  4. Step 4: Simplify right side
    510,613.34x = 198,120,835,286.12
  5. Step 5: Solve for x
    x = 198,120,835,286.12/510,613.34
  6. Step 6: Final answer
    x = 388,005.60

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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.