Home / 727,929.87-1,004,529.44-396,788.72

Finding the Fourth Proportional to 727,929.87, 1,004,529.44 and 396,788.72

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Solution

The fourth proportional to 727,929.87, 1,004,529.44 and 396,788.72 is: 547,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,929.87 : 1,004,529.44 = 396,788.72 : x
  2. Step 2: Convert to fraction form
    727,929.87/1,004,529.44 = 396,788.72/x
  3. Step 3: Cross multiply
    727,929.87x = 1,004,529.44 × 396,788.72
  4. Step 4: Simplify right side
    727,929.87x = 398,585,943,693.33
  5. Step 5: Solve for x
    x = 398,585,943,693.33/727,929.87
  6. Step 6: Final answer
    x = 547,560.91

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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.