Home / 702,122.85-1,053,184.28-620,766.45

Finding the Fourth Proportional to 702,122.85, 1,053,184.28 and 620,766.45

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Solution

The fourth proportional to 702,122.85, 1,053,184.28 and 620,766.45 is: 931,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,122.85 : 1,053,184.28 = 620,766.45 : x
  2. Step 2: Convert to fraction form
    702,122.85/1,053,184.28 = 620,766.45/x
  3. Step 3: Cross multiply
    702,122.85x = 1,053,184.28 × 620,766.45
  4. Step 4: Simplify right side
    702,122.85x = 653,781,463,587.57
  5. Step 5: Solve for x
    x = 653,781,463,587.57/702,122.85
  6. Step 6: Final answer
    x = 931,149.68

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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.