Home / 482,631.20-666,061.24-278,719.40

Finding the Fourth Proportional to 482,631.20, 666,061.24 and 278,719.40

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Solution

The fourth proportional to 482,631.20, 666,061.24 and 278,719.40 is: 384,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,631.20 : 666,061.24 = 278,719.40 : x
  2. Step 2: Convert to fraction form
    482,631.20/666,061.24 = 278,719.40/x
  3. Step 3: Cross multiply
    482,631.20x = 666,061.24 × 278,719.40
  4. Step 4: Simplify right side
    482,631.20x = 185,644,189,176.06
  5. Step 5: Solve for x
    x = 185,644,189,176.06/482,631.20
  6. Step 6: Final answer
    x = 384,650.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.