Home / 791,381.81-1,092,127.23-485,627.12

Finding the Fourth Proportional to 791,381.81, 1,092,127.23 and 485,627.12

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Solution

The fourth proportional to 791,381.81, 1,092,127.23 and 485,627.12 is: 670,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,381.81 : 1,092,127.23 = 485,627.12 : x
  2. Step 2: Convert to fraction form
    791,381.81/1,092,127.23 = 485,627.12/x
  3. Step 3: Cross multiply
    791,381.81x = 1,092,127.23 × 485,627.12
  4. Step 4: Simplify right side
    791,381.81x = 530,366,601,378.48
  5. Step 5: Solve for x
    x = 530,366,601,378.48/791,381.81
  6. Step 6: Final answer
    x = 670,177.90

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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.