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Finding the Fourth Proportional to 440,348.10, 660,522.15 and 288,132.90

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Solution

The fourth proportional to 440,348.10, 660,522.15 and 288,132.90 is: 432,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,348.10 : 660,522.15 = 288,132.90 : x
  2. Step 2: Convert to fraction form
    440,348.10/660,522.15 = 288,132.90/x
  3. Step 3: Cross multiply
    440,348.10x = 660,522.15 × 288,132.90
  4. Step 4: Simplify right side
    440,348.10x = 190,318,162,593.74
  5. Step 5: Solve for x
    x = 190,318,162,593.74/440,348.10
  6. Step 6: Final answer
    x = 432,199.35

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1.5x scale

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.