Home / 713,251.46-1,069,943.31-257,956.54

Finding the Fourth Proportional to 713,251.46, 1,069,943.31 and 257,956.54

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Solution

The fourth proportional to 713,251.46, 1,069,943.31 and 257,956.54 is: 386,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,251.46 : 1,069,943.31 = 257,956.54 : x
  2. Step 2: Convert to fraction form
    713,251.46/1,069,943.31 = 257,956.54/x
  3. Step 3: Cross multiply
    713,251.46x = 1,069,943.31 × 257,956.54
  4. Step 4: Simplify right side
    713,251.46x = 275,998,871,568.89
  5. Step 5: Solve for x
    x = 275,998,871,568.89/713,251.46
  6. Step 6: Final answer
    x = 386,958.72

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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.