Home / 727,871.57-1,004,449.31-396,730.36

Finding the Fourth Proportional to 727,871.57, 1,004,449.31 and 396,730.36

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Solution

The fourth proportional to 727,871.57, 1,004,449.31 and 396,730.36 is: 547,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,871.57 : 1,004,449.31 = 396,730.36 : x
  2. Step 2: Convert to fraction form
    727,871.57/1,004,449.31 = 396,730.36/x
  3. Step 3: Cross multiply
    727,871.57x = 1,004,449.31 × 396,730.36
  4. Step 4: Simplify right side
    727,871.57x = 398,495,537,117.70
  5. Step 5: Solve for x
    x = 398,495,537,117.70/727,871.57
  6. Step 6: Final answer
    x = 547,480.56

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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.