Home / 828,139.52-1,142,873.08-465,677.48

Finding the Fourth Proportional to 828,139.52, 1,142,873.08 and 465,677.48

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Solution

The fourth proportional to 828,139.52, 1,142,873.08 and 465,677.48 is: 642,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,139.52 : 1,142,873.08 = 465,677.48 : x
  2. Step 2: Convert to fraction form
    828,139.52/1,142,873.08 = 465,677.48/x
  3. Step 3: Cross multiply
    828,139.52x = 1,142,873.08 × 465,677.48
  4. Step 4: Simplify right side
    828,139.52x = 532,210,255,854.24
  5. Step 5: Solve for x
    x = 532,210,255,854.24/828,139.52
  6. Step 6: Final answer
    x = 642,657.72

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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.