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Finding the Fourth Proportional to 638,224.30, 880,737.46 and 347,838.29

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Solution

The fourth proportional to 638,224.30, 880,737.46 and 347,838.29 is: 480,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,224.30 : 880,737.46 = 347,838.29 : x
  2. Step 2: Convert to fraction form
    638,224.30/880,737.46 = 347,838.29/x
  3. Step 3: Cross multiply
    638,224.30x = 880,737.46 × 347,838.29
  4. Step 4: Simplify right side
    638,224.30x = 306,354,212,025.34
  5. Step 5: Solve for x
    x = 306,354,212,025.34/638,224.30
  6. Step 6: Final answer
    x = 480,010.26

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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.