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Finding the Fourth Proportional to 580,447.46, 800,990.57 and 322,340.79

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Solution

The fourth proportional to 580,447.46, 800,990.57 and 322,340.79 is: 444,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,447.46 : 800,990.57 = 322,340.79 : x
  2. Step 2: Convert to fraction form
    580,447.46/800,990.57 = 322,340.79/x
  3. Step 3: Cross multiply
    580,447.46x = 800,990.57 × 322,340.79
  4. Step 4: Simplify right side
    580,447.46x = 258,191,931,504.65
  5. Step 5: Solve for x
    x = 258,191,931,504.65/580,447.46
  6. Step 6: Final answer
    x = 444,815.34

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1.5x scale

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.