Home / 739,760.31-1,108,659.51-379,916.65

Finding the Fourth Proportional to 739,760.31, 1,108,659.51 and 379,916.65

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Solution

The fourth proportional to 739,760.31, 1,108,659.51 and 379,916.65 is: 569,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,760.31 : 1,108,659.51 = 379,916.65 : x
  2. Step 2: Convert to fraction form
    739,760.31/1,108,659.51 = 379,916.65/x
  3. Step 3: Cross multiply
    739,760.31x = 1,108,659.51 × 379,916.65
  4. Step 4: Simplify right side
    739,760.31x = 421,198,207,029.84
  5. Step 5: Solve for x
    x = 421,198,207,029.84/739,760.31
  6. Step 6: Final answer
    x = 569,371.19

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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.