Home / 861,330.39-1,292,190.21-284,952.31

Finding the Fourth Proportional to 861,330.39, 1,292,190.21 and 284,952.31

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Solution

The fourth proportional to 861,330.39, 1,292,190.21 and 284,952.31 is: 427,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,330.39 : 1,292,190.21 = 284,952.31 : x
  2. Step 2: Convert to fraction form
    861,330.39/1,292,190.21 = 284,952.31/x
  3. Step 3: Cross multiply
    861,330.39x = 1,292,190.21 × 284,952.31
  4. Step 4: Simplify right side
    861,330.39x = 368,212,585,298.89
  5. Step 5: Solve for x
    x = 368,212,585,298.89/861,330.39
  6. Step 6: Final answer
    x = 427,492.85

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1.5x scale

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.