Home / 992,458.60-1,488,687.90-571,388.20

Finding the Fourth Proportional to 992,458.60, 1,488,687.90 and 571,388.20

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Solution

The fourth proportional to 992,458.60, 1,488,687.90 and 571,388.20 is: 857,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,458.60 : 1,488,687.90 = 571,388.20 : x
  2. Step 2: Convert to fraction form
    992,458.60/1,488,687.90 = 571,388.20/x
  3. Step 3: Cross multiply
    992,458.60x = 1,488,687.90 × 571,388.20
  4. Step 4: Simplify right side
    992,458.60x = 850,618,699,542.78
  5. Step 5: Solve for x
    x = 850,618,699,542.78/992,458.60
  6. Step 6: Final answer
    x = 857,082.30

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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.