Home / 718,869.66-992,037.31-396,599.82

Finding the Fourth Proportional to 718,869.66, 992,037.31 and 396,599.82

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Solution

The fourth proportional to 718,869.66, 992,037.31 and 396,599.82 is: 547,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,869.66 : 992,037.31 = 396,599.82 : x
  2. Step 2: Convert to fraction form
    718,869.66/992,037.31 = 396,599.82/x
  3. Step 3: Cross multiply
    718,869.66x = 992,037.31 × 396,599.82
  4. Step 4: Simplify right side
    718,869.66x = 393,441,818,579.28
  5. Step 5: Solve for x
    x = 393,441,818,579.28/718,869.66
  6. Step 6: Final answer
    x = 547,306.20

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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.