Home / 992,997.90-1,489,088.61-393,876.54

Finding the Fourth Proportional to 992,997.90, 1,489,088.61 and 393,876.54

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Solution

The fourth proportional to 992,997.90, 1,489,088.61 and 393,876.54 is: 590,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,997.90 : 1,489,088.61 = 393,876.54 : x
  2. Step 2: Convert to fraction form
    992,997.90/1,489,088.61 = 393,876.54/x
  3. Step 3: Cross multiply
    992,997.90x = 1,489,088.61 × 393,876.54
  4. Step 4: Simplify right side
    992,997.90x = 586,517,069,460.21
  5. Step 5: Solve for x
    x = 586,517,069,460.21/992,997.90
  6. Step 6: Final answer
    x = 590,652.88

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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.