Home / 915,780.13-1,263,691.94-507,874.46

Finding the Fourth Proportional to 915,780.13, 1,263,691.94 and 507,874.46

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Solution

The fourth proportional to 915,780.13, 1,263,691.94 and 507,874.46 is: 700,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,780.13 : 1,263,691.94 = 507,874.46 : x
  2. Step 2: Convert to fraction form
    915,780.13/1,263,691.94 = 507,874.46/x
  3. Step 3: Cross multiply
    915,780.13x = 1,263,691.94 × 507,874.46
  4. Step 4: Simplify right side
    915,780.13x = 641,796,852,776.02
  5. Step 5: Solve for x
    x = 641,796,852,776.02/915,780.13
  6. Step 6: Final answer
    x = 700,819.81

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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.