Home / 782,143.50-1,079,358.03-424,447.50

Finding the Fourth Proportional to 782,143.50, 1,079,358.03 and 424,447.50

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Solution

The fourth proportional to 782,143.50, 1,079,358.03 and 424,447.50 is: 585,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,143.50 : 1,079,358.03 = 424,447.50 : x
  2. Step 2: Convert to fraction form
    782,143.50/1,079,358.03 = 424,447.50/x
  3. Step 3: Cross multiply
    782,143.50x = 1,079,358.03 × 424,447.50
  4. Step 4: Simplify right side
    782,143.50x = 458,130,817,438.43
  5. Step 5: Solve for x
    x = 458,130,817,438.43/782,143.50
  6. Step 6: Final answer
    x = 585,737.55

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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.