Home / 498,329.10-687,454.92-326,171.22

Finding the Fourth Proportional to 498,329.10, 687,454.92 and 326,171.22

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Solution

The fourth proportional to 498,329.10, 687,454.92 and 326,171.22 is: 449,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,329.10 : 687,454.92 = 326,171.22 : x
  2. Step 2: Convert to fraction form
    498,329.10/687,454.92 = 326,171.22/x
  3. Step 3: Cross multiply
    498,329.10x = 687,454.92 × 326,171.22
  4. Step 4: Simplify right side
    498,329.10x = 224,228,009,951.40
  5. Step 5: Solve for x
    x = 224,228,009,951.40/498,329.10
  6. Step 6: Final answer
    x = 449,959.70

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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.