Home / 898,326.80-1,347,490.20-425,934.80

Finding the Fourth Proportional to 898,326.80, 1,347,490.20 and 425,934.80

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Solution

The fourth proportional to 898,326.80, 1,347,490.20 and 425,934.80 is: 638,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,326.80 : 1,347,490.20 = 425,934.80 : x
  2. Step 2: Convert to fraction form
    898,326.80/1,347,490.20 = 425,934.80/x
  3. Step 3: Cross multiply
    898,326.80x = 1,347,490.20 × 425,934.80
  4. Step 4: Simplify right side
    898,326.80x = 573,942,968,838.96
  5. Step 5: Solve for x
    x = 573,942,968,838.96/898,326.80
  6. Step 6: Final answer
    x = 638,902.20

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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.