Home / 898,340.80-1,347,511.20-425,948.80

Finding the Fourth Proportional to 898,340.80, 1,347,511.20 and 425,948.80

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Solution

The fourth proportional to 898,340.80, 1,347,511.20 and 425,948.80 is: 638,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,340.80 : 1,347,511.20 = 425,948.80 : x
  2. Step 2: Convert to fraction form
    898,340.80/1,347,511.20 = 425,948.80/x
  3. Step 3: Cross multiply
    898,340.80x = 1,347,511.20 × 425,948.80
  4. Step 4: Simplify right side
    898,340.80x = 573,970,778,626.56
  5. Step 5: Solve for x
    x = 573,970,778,626.56/898,340.80
  6. Step 6: Final answer
    x = 638,923.20

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Double scale
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Similar ratio
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1.5x scale

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.