Home / 688,002.90-1,030,449.15-408,066.90

Finding the Fourth Proportional to 688,002.90, 1,030,449.15 and 408,066.90

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Solution

The fourth proportional to 688,002.90, 1,030,449.15 and 408,066.90 is: 611,177.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,002.90 : 1,030,449.15 = 408,066.90 : x
  2. Step 2: Convert to fraction form
    688,002.90/1,030,449.15 = 408,066.90/x
  3. Step 3: Cross multiply
    688,002.90x = 1,030,449.15 × 408,066.90
  4. Step 4: Simplify right side
    688,002.90x = 420,492,190,248.14
  5. Step 5: Solve for x
    x = 420,492,190,248.14/688,002.90
  6. Step 6: Final answer
    x = 611,177.93

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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.