Home / 718,895.54-992,079.14-396,605.52

Finding the Fourth Proportional to 718,895.54, 992,079.14 and 396,605.52

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Solution

The fourth proportional to 718,895.54, 992,079.14 and 396,605.52 is: 547,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,895.54 : 992,079.14 = 396,605.52 : x
  2. Step 2: Convert to fraction form
    718,895.54/992,079.14 = 396,605.52/x
  3. Step 3: Cross multiply
    718,895.54x = 992,079.14 × 396,605.52
  4. Step 4: Simplify right side
    718,895.54x = 393,464,056,257.43
  5. Step 5: Solve for x
    x = 393,464,056,257.43/718,895.54
  6. Step 6: Final answer
    x = 547,317.43

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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.