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Finding the Fourth Proportional to 559,013.40, 838,520.10 and 498,360.60

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Solution

The fourth proportional to 559,013.40, 838,520.10 and 498,360.60 is: 747,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,013.40 : 838,520.10 = 498,360.60 : x
  2. Step 2: Convert to fraction form
    559,013.40/838,520.10 = 498,360.60/x
  3. Step 3: Cross multiply
    559,013.40x = 838,520.10 × 498,360.60
  4. Step 4: Simplify right side
    559,013.40x = 417,885,380,148.06
  5. Step 5: Solve for x
    x = 417,885,380,148.06/559,013.40
  6. Step 6: Final answer
    x = 747,540.90

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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.