Home / 498,320.70-747,481.05-143,313.90

Finding the Fourth Proportional to 498,320.70, 747,481.05 and 143,313.90

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Solution

The fourth proportional to 498,320.70, 747,481.05 and 143,313.90 is: 214,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,320.70 : 747,481.05 = 143,313.90 : x
  2. Step 2: Convert to fraction form
    498,320.70/747,481.05 = 143,313.90/x
  3. Step 3: Cross multiply
    498,320.70x = 747,481.05 × 143,313.90
  4. Step 4: Simplify right side
    498,320.70x = 107,124,424,451.60
  5. Step 5: Solve for x
    x = 107,124,424,451.60/498,320.70
  6. Step 6: Final answer
    x = 214,970.85

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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.