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Finding the Fourth Proportional to 580,807.55, 801,486.27 and 322,700.78

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Solution

The fourth proportional to 580,807.55, 801,486.27 and 322,700.78 is: 445,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,807.55 : 801,486.27 = 322,700.78 : x
  2. Step 2: Convert to fraction form
    580,807.55/801,486.27 = 322,700.78/x
  3. Step 3: Cross multiply
    580,807.55x = 801,486.27 × 322,700.78
  4. Step 4: Simplify right side
    580,807.55x = 258,640,240,480.86
  5. Step 5: Solve for x
    x = 258,640,240,480.86/580,807.55
  6. Step 6: Final answer
    x = 445,311.43

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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.