Home / 482,739.45-724,344.36-198,515.40

Finding the Fourth Proportional to 482,739.45, 724,344.36 and 198,515.40

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Solution

The fourth proportional to 482,739.45, 724,344.36 and 198,515.40 is: 297,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,739.45 : 724,344.36 = 198,515.40 : x
  2. Step 2: Convert to fraction form
    482,739.45/724,344.36 = 198,515.40/x
  3. Step 3: Cross multiply
    482,739.45x = 724,344.36 × 198,515.40
  4. Step 4: Simplify right side
    482,739.45x = 143,793,510,363.14
  5. Step 5: Solve for x
    x = 143,793,510,363.14/482,739.45
  6. Step 6: Final answer
    x = 297,869.81

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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.