Home / 828,986.17-1,144,042.91-489,447.13

Finding the Fourth Proportional to 828,986.17, 1,144,042.91 and 489,447.13

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Solution

The fourth proportional to 828,986.17, 1,144,042.91 and 489,447.13 is: 675,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,986.17 : 1,144,042.91 = 489,447.13 : x
  2. Step 2: Convert to fraction form
    828,986.17/1,144,042.91 = 489,447.13/x
  3. Step 3: Cross multiply
    828,986.17x = 1,144,042.91 × 489,447.13
  4. Step 4: Simplify right side
    828,986.17x = 559,948,516,449.11
  5. Step 5: Solve for x
    x = 559,948,516,449.11/828,986.17
  6. Step 6: Final answer
    x = 675,461.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.