Home / 1,123,276.14-1,549,940.06-639,850.73

Finding the Fourth Proportional to 1,123,276.14, 1,549,940.06 and 639,850.73

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Solution

The fourth proportional to 1,123,276.14, 1,549,940.06 and 639,850.73 is: 882,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,276.14 : 1,549,940.06 = 639,850.73 : x
  2. Step 2: Convert to fraction form
    1,123,276.14/1,549,940.06 = 639,850.73/x
  3. Step 3: Cross multiply
    1,123,276.14x = 1,549,940.06 × 639,850.73
  4. Step 4: Simplify right side
    1,123,276.14x = 991,730,272,697.17
  5. Step 5: Solve for x
    x = 991,730,272,697.17/1,123,276.14
  6. Step 6: Final answer
    x = 882,890.89

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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.