Home / 992,446.20-1,489,058.10-393,305.40

Finding the Fourth Proportional to 992,446.20, 1,489,058.10 and 393,305.40

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Solution

The fourth proportional to 992,446.20, 1,489,058.10 and 393,305.40 is: 590,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,446.20 : 1,489,058.10 = 393,305.40 : x
  2. Step 2: Convert to fraction form
    992,446.20/1,489,058.10 = 393,305.40/x
  3. Step 3: Cross multiply
    992,446.20x = 1,489,058.10 × 393,305.40
  4. Step 4: Simplify right side
    992,446.20x = 585,654,591,643.74
  5. Step 5: Solve for x
    x = 585,654,591,643.74/992,446.20
  6. Step 6: Final answer
    x = 590,112.18

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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.