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Finding the Fourth Proportional to 391,024.10, 548,908.30 and 391,024.10

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Solution

The fourth proportional to 391,024.10, 548,908.30 and 391,024.10 is: 548,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,024.10 : 548,908.30 = 391,024.10 : x
  2. Step 2: Convert to fraction form
    391,024.10/548,908.30 = 391,024.10/x
  3. Step 3: Cross multiply
    391,024.10x = 548,908.30 × 391,024.10
  4. Step 4: Simplify right side
    391,024.10x = 214,636,373,990.03
  5. Step 5: Solve for x
    x = 214,636,373,990.03/391,024.10
  6. Step 6: Final answer
    x = 548,908.30

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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.