Home / 498,318.66-687,440.54-326,160.83

Finding the Fourth Proportional to 498,318.66, 687,440.54 and 326,160.83

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Solution

The fourth proportional to 498,318.66, 687,440.54 and 326,160.83 is: 449,945.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,318.66 : 687,440.54 = 326,160.83 : x
  2. Step 2: Convert to fraction form
    498,318.66/687,440.54 = 326,160.83/x
  3. Step 3: Cross multiply
    498,318.66x = 687,440.54 × 326,160.83
  4. Step 4: Simplify right side
    498,318.66x = 224,216,172,034.04
  5. Step 5: Solve for x
    x = 224,216,172,034.04/498,318.66
  6. Step 6: Final answer
    x = 449,945.37

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1.5x scale

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.