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Finding the Fourth Proportional to 497,726.40, 746,589.60 and 439,665.60

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Solution

The fourth proportional to 497,726.40, 746,589.60 and 439,665.60 is: 659,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,726.40 : 746,589.60 = 439,665.60 : x
  2. Step 2: Convert to fraction form
    497,726.40/746,589.60 = 439,665.60/x
  3. Step 3: Cross multiply
    497,726.40x = 746,589.60 × 439,665.60
  4. Step 4: Simplify right side
    497,726.40x = 328,249,764,437.76
  5. Step 5: Solve for x
    x = 328,249,764,437.76/497,726.40
  6. Step 6: Final answer
    x = 659,498.40

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Similar ratio
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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.