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Finding the Fourth Proportional to 431,539.30, 603,367.70 and 431,539.30

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Solution

The fourth proportional to 431,539.30, 603,367.70 and 431,539.30 is: 603,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,539.30 : 603,367.70 = 431,539.30 : x
  2. Step 2: Convert to fraction form
    431,539.30/603,367.70 = 431,539.30/x
  3. Step 3: Cross multiply
    431,539.30x = 603,367.70 × 431,539.30
  4. Step 4: Simplify right side
    431,539.30x = 260,376,874,900.61
  5. Step 5: Solve for x
    x = 260,376,874,900.61/431,539.30
  6. Step 6: Final answer
    x = 603,367.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.