Home / 853,820.15-1,280,951.55-454,132.13

Finding the Fourth Proportional to 853,820.15, 1,280,951.55 and 454,132.13

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Solution

The fourth proportional to 853,820.15, 1,280,951.55 and 454,132.13 is: 681,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,820.15 : 1,280,951.55 = 454,132.13 : x
  2. Step 2: Convert to fraction form
    853,820.15/1,280,951.55 = 454,132.13/x
  3. Step 3: Cross multiply
    853,820.15x = 1,280,951.55 × 454,132.13
  4. Step 4: Simplify right side
    853,820.15x = 581,721,249,423.54
  5. Step 5: Solve for x
    x = 581,721,249,423.54/853,820.15
  6. Step 6: Final answer
    x = 681,315.91

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1.5x scale

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.