Home / 642,444.76-964,549.86-327,113.56

Finding the Fourth Proportional to 642,444.76, 964,549.86 and 327,113.56

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Solution

The fourth proportional to 642,444.76, 964,549.86 and 327,113.56 is: 491,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,444.76 : 964,549.86 = 327,113.56 : x
  2. Step 2: Convert to fraction form
    642,444.76/964,549.86 = 327,113.56/x
  3. Step 3: Cross multiply
    642,444.76x = 964,549.86 × 327,113.56
  4. Step 4: Simplify right side
    642,444.76x = 315,517,338,502.10
  5. Step 5: Solve for x
    x = 315,517,338,502.10/642,444.76
  6. Step 6: Final answer
    x = 491,119.79

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1.5x scale

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.