Home / 819,346.92-1,229,020.38-258,425.16

Finding the Fourth Proportional to 819,346.92, 1,229,020.38 and 258,425.16

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Solution

The fourth proportional to 819,346.92, 1,229,020.38 and 258,425.16 is: 387,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,346.92 : 1,229,020.38 = 258,425.16 : x
  2. Step 2: Convert to fraction form
    819,346.92/1,229,020.38 = 258,425.16/x
  3. Step 3: Cross multiply
    819,346.92x = 1,229,020.38 × 258,425.16
  4. Step 4: Simplify right side
    819,346.92x = 317,609,788,344.76
  5. Step 5: Solve for x
    x = 317,609,788,344.76/819,346.92
  6. Step 6: Final answer
    x = 387,637.74

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Double scale
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Similar ratio
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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.