Home / 828,519.87-1,143,402.65-465,965.16

Finding the Fourth Proportional to 828,519.87, 1,143,402.65 and 465,965.16

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Solution

The fourth proportional to 828,519.87, 1,143,402.65 and 465,965.16 is: 643,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,519.87 : 1,143,402.65 = 465,965.16 : x
  2. Step 2: Convert to fraction form
    828,519.87/1,143,402.65 = 465,965.16/x
  3. Step 3: Cross multiply
    828,519.87x = 1,143,402.65 × 465,965.16
  4. Step 4: Simplify right side
    828,519.87x = 532,785,793,881.46
  5. Step 5: Solve for x
    x = 532,785,793,881.46/828,519.87
  6. Step 6: Final answer
    x = 643,057.35

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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.