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Finding the Fourth Proportional to 634,471.25, 949,482.86 and 454,754.76

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Solution

The fourth proportional to 634,471.25, 949,482.86 and 454,754.76 is: 680,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,471.25 : 949,482.86 = 454,754.76 : x
  2. Step 2: Convert to fraction form
    634,471.25/949,482.86 = 454,754.76/x
  3. Step 3: Cross multiply
    634,471.25x = 949,482.86 × 454,754.76
  4. Step 4: Simplify right side
    634,471.25x = 431,781,846,847.08
  5. Step 5: Solve for x
    x = 431,781,846,847.08/634,471.25
  6. Step 6: Final answer
    x = 680,538.08

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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.