Home / 3,258,139.20-4,887,442.52-861,955.38

Finding the Fourth Proportional to 3,258,139.20, 4,887,442.52 and 861,955.38

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Solution

The fourth proportional to 3,258,139.20, 4,887,442.52 and 861,955.38 is: 1,292,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258,139.20 : 4,887,442.52 = 861,955.38 : x
  2. Step 2: Convert to fraction form
    3,258,139.20/4,887,442.52 = 861,955.38/x
  3. Step 3: Cross multiply
    3,258,139.20x = 4,887,442.52 × 861,955.38
  4. Step 4: Simplify right side
    3,258,139.20x = 4,212,757,374,554.76
  5. Step 5: Solve for x
    x = 4,212,757,374,554.76/3,258,139.20
  6. Step 6: Final answer
    x = 1,292,994.90

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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.