Home / 913,055.52-1,368,840.96-380,972.88

Finding the Fourth Proportional to 913,055.52, 1,368,840.96 and 380,972.88

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Solution

The fourth proportional to 913,055.52, 1,368,840.96 and 380,972.88 is: 571,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,055.52 : 1,368,840.96 = 380,972.88 : x
  2. Step 2: Convert to fraction form
    913,055.52/1,368,840.96 = 380,972.88/x
  3. Step 3: Cross multiply
    913,055.52x = 1,368,840.96 × 380,972.88
  4. Step 4: Simplify right side
    913,055.52x = 521,491,282,793.17
  5. Step 5: Solve for x
    x = 521,491,282,793.17/913,055.52
  6. Step 6: Final answer
    x = 571,149.59

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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.