Home / 571,531.29-857,187.61-287,143.03

Finding the Fourth Proportional to 571,531.29, 857,187.61 and 287,143.03

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Solution

The fourth proportional to 571,531.29, 857,187.61 and 287,143.03 is: 430,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,531.29 : 857,187.61 = 287,143.03 : x
  2. Step 2: Convert to fraction form
    571,531.29/857,187.61 = 287,143.03/x
  3. Step 3: Cross multiply
    571,531.29x = 857,187.61 × 287,143.03
  4. Step 4: Simplify right side
    571,531.29x = 246,135,447,613.86
  5. Step 5: Solve for x
    x = 246,135,447,613.86/571,531.29
  6. Step 6: Final answer
    x = 430,659.62

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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.