Home / 855,254.89-1,282,520.90-256,301.29

Finding the Fourth Proportional to 855,254.89, 1,282,520.90 and 256,301.29

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Solution

The fourth proportional to 855,254.89, 1,282,520.90 and 256,301.29 is: 384,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,254.89 : 1,282,520.90 = 256,301.29 : x
  2. Step 2: Convert to fraction form
    855,254.89/1,282,520.90 = 256,301.29/x
  3. Step 3: Cross multiply
    855,254.89x = 1,282,520.90 × 256,301.29
  4. Step 4: Simplify right side
    855,254.89x = 328,711,761,121.96
  5. Step 5: Solve for x
    x = 328,711,761,121.96/855,254.89
  6. Step 6: Final answer
    x = 384,343.62

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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.