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Finding the Fourth Proportional to 445,810.72, 667,875.33 and 345,480.48

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Solution

The fourth proportional to 445,810.72, 667,875.33 and 345,480.48 is: 517,569.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,810.72 : 667,875.33 = 345,480.48 : x
  2. Step 2: Convert to fraction form
    445,810.72/667,875.33 = 345,480.48/x
  3. Step 3: Cross multiply
    445,810.72x = 667,875.33 × 345,480.48
  4. Step 4: Simplify right side
    445,810.72x = 230,737,886,232.52
  5. Step 5: Solve for x
    x = 230,737,886,232.52/445,810.72
  6. Step 6: Final answer
    x = 517,569.17

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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.