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Finding the Fourth Proportional to 510,010.74, 703,792.58 and 280,553.48

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Solution

The fourth proportional to 510,010.74, 703,792.58 and 280,553.48 is: 387,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,010.74 : 703,792.58 = 280,553.48 : x
  2. Step 2: Convert to fraction form
    510,010.74/703,792.58 = 280,553.48/x
  3. Step 3: Cross multiply
    510,010.74x = 703,792.58 × 280,553.48
  4. Step 4: Simplify right side
    510,010.74x = 197,451,452,595.45
  5. Step 5: Solve for x
    x = 197,451,452,595.45/510,010.74
  6. Step 6: Final answer
    x = 387,151.56

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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.