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Finding the Fourth Proportional to 580,143.72, 800,555.76 and 322,035.60

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Solution

The fourth proportional to 580,143.72, 800,555.76 and 322,035.60 is: 444,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,143.72 : 800,555.76 = 322,035.60 : x
  2. Step 2: Convert to fraction form
    580,143.72/800,555.76 = 322,035.60/x
  3. Step 3: Cross multiply
    580,143.72x = 800,555.76 × 322,035.60
  4. Step 4: Simplify right side
    580,143.72x = 257,807,454,505.06
  5. Step 5: Solve for x
    x = 257,807,454,505.06/580,143.72
  6. Step 6: Final answer
    x = 444,385.50

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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.