Home / 439,331.58-659,000.88-287,656.52

Finding the Fourth Proportional to 439,331.58, 659,000.88 and 287,656.52

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Solution

The fourth proportional to 439,331.58, 659,000.88 and 287,656.52 is: 431,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,331.58 : 659,000.88 = 287,656.52 : x
  2. Step 2: Convert to fraction form
    439,331.58/659,000.88 = 287,656.52/x
  3. Step 3: Cross multiply
    439,331.58x = 659,000.88 × 287,656.52
  4. Step 4: Simplify right side
    439,331.58x = 189,565,896,522.73
  5. Step 5: Solve for x
    x = 189,565,896,522.73/439,331.58
  6. Step 6: Final answer
    x = 431,487.07

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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.