Home / 913,371.80-1,260,433.17-499,906.58

Finding the Fourth Proportional to 913,371.80, 1,260,433.17 and 499,906.58

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Solution

The fourth proportional to 913,371.80, 1,260,433.17 and 499,906.58 is: 689,860.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,371.80 : 1,260,433.17 = 499,906.58 : x
  2. Step 2: Convert to fraction form
    913,371.80/1,260,433.17 = 499,906.58/x
  3. Step 3: Cross multiply
    913,371.80x = 1,260,433.17 × 499,906.58
  4. Step 4: Simplify right side
    913,371.80x = 630,098,829,031.09
  5. Step 5: Solve for x
    x = 630,098,829,031.09/913,371.80
  6. Step 6: Final answer
    x = 689,860.18

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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.