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Finding the Fourth Proportional to 515,315.24, 710,775.24 and 497,974.76

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Solution

The fourth proportional to 515,315.24, 710,775.24 and 497,974.76 is: 686,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,315.24 : 710,775.24 = 497,974.76 : x
  2. Step 2: Convert to fraction form
    515,315.24/710,775.24 = 497,974.76/x
  3. Step 3: Cross multiply
    515,315.24x = 710,775.24 × 497,974.76
  4. Step 4: Simplify right side
    515,315.24x = 353,948,129,552.94
  5. Step 5: Solve for x
    x = 353,948,129,552.94/515,315.24
  6. Step 6: Final answer
    x = 686,857.48

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Double scale
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Similar ratio
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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.