Home / 920,587.31-1,381,029.73-272,229.29

Finding the Fourth Proportional to 920,587.31, 1,381,029.73 and 272,229.29

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Solution

The fourth proportional to 920,587.31, 1,381,029.73 and 272,229.29 is: 408,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,587.31 : 1,381,029.73 = 272,229.29 : x
  2. Step 2: Convert to fraction form
    920,587.31/1,381,029.73 = 272,229.29/x
  3. Step 3: Cross multiply
    920,587.31x = 1,381,029.73 × 272,229.29
  4. Step 4: Simplify right side
    920,587.31x = 375,956,735,281.07
  5. Step 5: Solve for x
    x = 375,956,735,281.07/920,587.31
  6. Step 6: Final answer
    x = 408,387.92

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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.