Home / 862,130.55-1,189,833.19-474,985.53

Finding the Fourth Proportional to 862,130.55, 1,189,833.19 and 474,985.53

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Solution

The fourth proportional to 862,130.55, 1,189,833.19 and 474,985.53 is: 655,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,130.55 : 1,189,833.19 = 474,985.53 : x
  2. Step 2: Convert to fraction form
    862,130.55/1,189,833.19 = 474,985.53/x
  3. Step 3: Cross multiply
    862,130.55x = 1,189,833.19 × 474,985.53
  4. Step 4: Simplify right side
    862,130.55x = 565,153,548,363.74
  5. Step 5: Solve for x
    x = 565,153,548,363.74/862,130.55
  6. Step 6: Final answer
    x = 655,531.29

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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.