Home / 752,258.43-1,037,336.14-643,721.93

Finding the Fourth Proportional to 752,258.43, 1,037,336.14 and 643,721.93

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Solution

The fourth proportional to 752,258.43, 1,037,336.14 and 643,721.93 is: 887,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,258.43 : 1,037,336.14 = 643,721.93 : x
  2. Step 2: Convert to fraction form
    752,258.43/1,037,336.14 = 643,721.93/x
  3. Step 3: Cross multiply
    752,258.43x = 1,037,336.14 × 643,721.93
  4. Step 4: Simplify right side
    752,258.43x = 667,756,015,303.57
  5. Step 5: Solve for x
    x = 667,756,015,303.57/752,258.43
  6. Step 6: Final answer
    x = 887,668.37

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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.