Home / 915,115.17-1,262,934.50-507,344.91

Finding the Fourth Proportional to 915,115.17, 1,262,934.50 and 507,344.91

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Solution

The fourth proportional to 915,115.17, 1,262,934.50 and 507,344.91 is: 700,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,115.17 : 1,262,934.50 = 507,344.91 : x
  2. Step 2: Convert to fraction form
    915,115.17/1,262,934.50 = 507,344.91/x
  3. Step 3: Cross multiply
    915,115.17x = 1,262,934.50 × 507,344.91
  4. Step 4: Simplify right side
    915,115.17x = 640,743,387,701.67
  5. Step 5: Solve for x
    x = 640,743,387,701.67/915,115.17
  6. Step 6: Final answer
    x = 700,177.87

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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.