Home / 782,172.75-1,079,398.40-424,476.75

Finding the Fourth Proportional to 782,172.75, 1,079,398.40 and 424,476.75

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Solution

The fourth proportional to 782,172.75, 1,079,398.40 and 424,476.75 is: 585,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,172.75 : 1,079,398.40 = 424,476.75 : x
  2. Step 2: Convert to fraction form
    782,172.75/1,079,398.40 = 424,476.75/x
  3. Step 3: Cross multiply
    782,172.75x = 1,079,398.40 × 424,476.75
  4. Step 4: Simplify right side
    782,172.75x = 458,179,524,787.20
  5. Step 5: Solve for x
    x = 458,179,524,787.20/782,172.75
  6. Step 6: Final answer
    x = 585,777.92

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Double scale
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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.