Home / 718,898.46-992,074.33-396,622.14

Finding the Fourth Proportional to 718,898.46, 992,074.33 and 396,622.14

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Solution

The fourth proportional to 718,898.46, 992,074.33 and 396,622.14 is: 547,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,898.46 : 992,074.33 = 396,622.14 : x
  2. Step 2: Convert to fraction form
    718,898.46/992,074.33 = 396,622.14/x
  3. Step 3: Cross multiply
    718,898.46x = 992,074.33 × 396,622.14
  4. Step 4: Simplify right side
    718,898.46x = 393,478,643,803.67
  5. Step 5: Solve for x
    x = 393,478,643,803.67/718,898.46
  6. Step 6: Final answer
    x = 547,335.49

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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.