Home / 1,098,775.03-1,515,154.03-812,890.39

Finding the Fourth Proportional to 1,098,775.03, 1,515,154.03 and 812,890.39

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Solution

The fourth proportional to 1,098,775.03, 1,515,154.03 and 812,890.39 is: 1,120,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,775.03 : 1,515,154.03 = 812,890.39 : x
  2. Step 2: Convert to fraction form
    1,098,775.03/1,515,154.03 = 812,890.39/x
  3. Step 3: Cross multiply
    1,098,775.03x = 1,515,154.03 × 812,890.39
  4. Step 4: Simplify right side
    1,098,775.03x = 1,231,654,155,160.77
  5. Step 5: Solve for x
    x = 1,231,654,155,160.77/1,098,775.03
  6. Step 6: Final answer
    x = 1,120,933.88

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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.