Home / 698,979.93-1,046,788.28-398,549.71

Finding the Fourth Proportional to 698,979.93, 1,046,788.28 and 398,549.71

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Solution

The fourth proportional to 698,979.93, 1,046,788.28 and 398,549.71 is: 596,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,979.93 : 1,046,788.28 = 398,549.71 : x
  2. Step 2: Convert to fraction form
    698,979.93/1,046,788.28 = 398,549.71/x
  3. Step 3: Cross multiply
    698,979.93x = 1,046,788.28 × 398,549.71
  4. Step 4: Simplify right side
    698,979.93x = 417,197,166,235.70
  5. Step 5: Solve for x
    x = 417,197,166,235.70/698,979.93
  6. Step 6: Final answer
    x = 596,865.73

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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.