Home / 820,681.49-1,132,636.55-682,616.85

Finding the Fourth Proportional to 820,681.49, 1,132,636.55 and 682,616.85

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Solution

The fourth proportional to 820,681.49, 1,132,636.55 and 682,616.85 is: 942,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,681.49 : 1,132,636.55 = 682,616.85 : x
  2. Step 2: Convert to fraction form
    820,681.49/1,132,636.55 = 682,616.85/x
  3. Step 3: Cross multiply
    820,681.49x = 1,132,636.55 × 682,616.85
  4. Step 4: Simplify right side
    820,681.49x = 773,156,790,542.78
  5. Step 5: Solve for x
    x = 773,156,790,542.78/820,681.49
  6. Step 6: Final answer
    x = 942,091.18

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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.