Home / 992,456.20-1,489,073.10-393,315.40

Finding the Fourth Proportional to 992,456.20, 1,489,073.10 and 393,315.40

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Solution

The fourth proportional to 992,456.20, 1,489,073.10 and 393,315.40 is: 590,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,456.20 : 1,489,073.10 = 393,315.40 : x
  2. Step 2: Convert to fraction form
    992,456.20/1,489,073.10 = 393,315.40/x
  3. Step 3: Cross multiply
    992,456.20x = 1,489,073.10 × 393,315.40
  4. Step 4: Simplify right side
    992,456.20x = 585,675,381,955.74
  5. Step 5: Solve for x
    x = 585,675,381,955.74/992,456.20
  6. Step 6: Final answer
    x = 590,127.18

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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.