Home / 853,930.47-1,279,124.15-497,864.55

Finding the Fourth Proportional to 853,930.47, 1,279,124.15 and 497,864.55

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Solution

The fourth proportional to 853,930.47, 1,279,124.15 and 497,864.55 is: 745,763.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,930.47 : 1,279,124.15 = 497,864.55 : x
  2. Step 2: Convert to fraction form
    853,930.47/1,279,124.15 = 497,864.55/x
  3. Step 3: Cross multiply
    853,930.47x = 1,279,124.15 × 497,864.55
  4. Step 4: Simplify right side
    853,930.47x = 636,830,566,844.56
  5. Step 5: Solve for x
    x = 636,830,566,844.56/853,930.47
  6. Step 6: Final answer
    x = 745,763.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.