Home / 598,918.20-898,377.30-430,081.80

Finding the Fourth Proportional to 598,918.20, 898,377.30 and 430,081.80

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Solution

The fourth proportional to 598,918.20, 898,377.30 and 430,081.80 is: 645,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,918.20 : 898,377.30 = 430,081.80 : x
  2. Step 2: Convert to fraction form
    598,918.20/898,377.30 = 430,081.80/x
  3. Step 3: Cross multiply
    598,918.20x = 898,377.30 × 430,081.80
  4. Step 4: Simplify right side
    598,918.20x = 386,375,726,263.14
  5. Step 5: Solve for x
    x = 386,375,726,263.14/598,918.20
  6. Step 6: Final answer
    x = 645,122.70

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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.