Home / 752,345.79-1,128,604.29-272,799.47

Finding the Fourth Proportional to 752,345.79, 1,128,604.29 and 272,799.47

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Solution

The fourth proportional to 752,345.79, 1,128,604.29 and 272,799.47 is: 409,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,345.79 : 1,128,604.29 = 272,799.47 : x
  2. Step 2: Convert to fraction form
    752,345.79/1,128,604.29 = 272,799.47/x
  3. Step 3: Cross multiply
    752,345.79x = 1,128,604.29 × 272,799.47
  4. Step 4: Simplify right side
    752,345.79x = 307,882,646,508.71
  5. Step 5: Solve for x
    x = 307,882,646,508.71/752,345.79
  6. Step 6: Final answer
    x = 409,230.24

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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.