Home / 791,381.31-1,092,126.54-485,626.62

Finding the Fourth Proportional to 791,381.31, 1,092,126.54 and 485,626.62

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Solution

The fourth proportional to 791,381.31, 1,092,126.54 and 485,626.62 is: 670,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,381.31 : 1,092,126.54 = 485,626.62 : x
  2. Step 2: Convert to fraction form
    791,381.31/1,092,126.54 = 485,626.62/x
  3. Step 3: Cross multiply
    791,381.31x = 1,092,126.54 × 485,626.62
  4. Step 4: Simplify right side
    791,381.31x = 530,365,720,232.50
  5. Step 5: Solve for x
    x = 530,365,720,232.50/791,381.31
  6. Step 6: Final answer
    x = 670,177.21

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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.