Home / 887,955.15-1,331,932.73-389,319.15

Finding the Fourth Proportional to 887,955.15, 1,331,932.73 and 389,319.15

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Solution

The fourth proportional to 887,955.15, 1,331,932.73 and 389,319.15 is: 583,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,955.15 : 1,331,932.73 = 389,319.15 : x
  2. Step 2: Convert to fraction form
    887,955.15/1,331,932.73 = 389,319.15/x
  3. Step 3: Cross multiply
    887,955.15x = 1,331,932.73 × 389,319.15
  4. Step 4: Simplify right side
    887,955.15x = 518,546,916,354.18
  5. Step 5: Solve for x
    x = 518,546,916,354.18/887,955.15
  6. Step 6: Final answer
    x = 583,978.73

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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.