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Finding the Fourth Proportional to 437,315.20, 655,972.80 and 437,315.20

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Solution

The fourth proportional to 437,315.20, 655,972.80 and 437,315.20 is: 655,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,315.20 : 655,972.80 = 437,315.20 : x
  2. Step 2: Convert to fraction form
    437,315.20/655,972.80 = 437,315.20/x
  3. Step 3: Cross multiply
    437,315.20x = 655,972.80 × 437,315.20
  4. Step 4: Simplify right side
    437,315.20x = 286,866,876,226.56
  5. Step 5: Solve for x
    x = 286,866,876,226.56/437,315.20
  6. Step 6: Final answer
    x = 655,972.80

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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.