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Finding the Fourth Proportional to 880,393.30, 1,320,201.15 and 347,737.30

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Solution

The fourth proportional to 880,393.30, 1,320,201.15 and 347,737.30 is: 521,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,393.30 : 1,320,201.15 = 347,737.30 : x
  2. Step 2: Convert to fraction form
    880,393.30/1,320,201.15 = 347,737.30/x
  3. Step 3: Cross multiply
    880,393.30x = 1,320,201.15 × 347,737.30
  4. Step 4: Simplify right side
    880,393.30x = 459,083,183,357.90
  5. Step 5: Solve for x
    x = 459,083,183,357.90/880,393.30
  6. Step 6: Final answer
    x = 521,452.38

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1.5x scale

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.