Home / 887,686.47-1,331,539.43-256,605.75

Finding the Fourth Proportional to 887,686.47, 1,331,539.43 and 256,605.75

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Solution

The fourth proportional to 887,686.47, 1,331,539.43 and 256,605.75 is: 384,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,686.47 : 1,331,539.43 = 256,605.75 : x
  2. Step 2: Convert to fraction form
    887,686.47/1,331,539.43 = 256,605.75/x
  3. Step 3: Cross multiply
    887,686.47x = 1,331,539.43 × 256,605.75
  4. Step 4: Simplify right side
    887,686.47x = 341,680,672,806.69
  5. Step 5: Solve for x
    x = 341,680,672,806.69/887,686.47
  6. Step 6: Final answer
    x = 384,911.43

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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.