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Finding the Fourth Proportional to 388,001.90, 582,002.85 and 388,001.90

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Solution

The fourth proportional to 388,001.90, 582,002.85 and 388,001.90 is: 582,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,001.90 : 582,002.85 = 388,001.90 : x
  2. Step 2: Convert to fraction form
    388,001.90/582,002.85 = 388,001.90/x
  3. Step 3: Cross multiply
    388,001.90x = 582,002.85 × 388,001.90
  4. Step 4: Simplify right side
    388,001.90x = 225,818,211,605.42
  5. Step 5: Solve for x
    x = 225,818,211,605.42/388,001.90
  6. Step 6: Final answer
    x = 582,002.85

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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.