Home / 718,249.02-991,228.28-395,958.52

Finding the Fourth Proportional to 718,249.02, 991,228.28 and 395,958.52

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Solution

The fourth proportional to 718,249.02, 991,228.28 and 395,958.52 is: 546,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,249.02 : 991,228.28 = 395,958.52 : x
  2. Step 2: Convert to fraction form
    718,249.02/991,228.28 = 395,958.52/x
  3. Step 3: Cross multiply
    718,249.02x = 991,228.28 × 395,958.52
  4. Step 4: Simplify right side
    718,249.02x = 392,485,282,730.95
  5. Step 5: Solve for x
    x = 392,485,282,730.95/718,249.02
  6. Step 6: Final answer
    x = 546,447.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.