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Finding the Fourth Proportional to 449,074.80, 619,722.84 and 247,870.32

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Solution

The fourth proportional to 449,074.80, 619,722.84 and 247,870.32 is: 342,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,074.80 : 619,722.84 = 247,870.32 : x
  2. Step 2: Convert to fraction form
    449,074.80/619,722.84 = 247,870.32/x
  3. Step 3: Cross multiply
    449,074.80x = 619,722.84 × 247,870.32
  4. Step 4: Simplify right side
    449,074.80x = 153,610,898,662.11
  5. Step 5: Solve for x
    x = 153,610,898,662.11/449,074.80
  6. Step 6: Final answer
    x = 342,060.83

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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.