Home / 1,123,359.68-1,549,857.84-639,582.52

Finding the Fourth Proportional to 1,123,359.68, 1,549,857.84 and 639,582.52

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Solution

The fourth proportional to 1,123,359.68, 1,549,857.84 and 639,582.52 is: 882,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,359.68 : 1,549,857.84 = 639,582.52 : x
  2. Step 2: Convert to fraction form
    1,123,359.68/1,549,857.84 = 639,582.52/x
  3. Step 3: Cross multiply
    1,123,359.68x = 1,549,857.84 × 639,582.52
  4. Step 4: Simplify right side
    1,123,359.68x = 991,261,982,948.96
  5. Step 5: Solve for x
    x = 991,261,982,948.96/1,123,359.68
  6. Step 6: Final answer
    x = 882,408.37

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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.