Home / 828,147.52-1,142,884.12-465,685.48

Finding the Fourth Proportional to 828,147.52, 1,142,884.12 and 465,685.48

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Solution

The fourth proportional to 828,147.52, 1,142,884.12 and 465,685.48 is: 642,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,147.52 : 1,142,884.12 = 465,685.48 : x
  2. Step 2: Convert to fraction form
    828,147.52/1,142,884.12 = 465,685.48/x
  3. Step 3: Cross multiply
    828,147.52x = 1,142,884.12 × 465,685.48
  4. Step 4: Simplify right side
    828,147.52x = 532,224,540,006.58
  5. Step 5: Solve for x
    x = 532,224,540,006.58/828,147.52
  6. Step 6: Final answer
    x = 642,668.76

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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.