Home / 805,505.31-1,207,503.45-272,653.29

Finding the Fourth Proportional to 805,505.31, 1,207,503.45 and 272,653.29

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Solution

The fourth proportional to 805,505.31, 1,207,503.45 and 272,653.29 is: 408,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,505.31 : 1,207,503.45 = 272,653.29 : x
  2. Step 2: Convert to fraction form
    805,505.31/1,207,503.45 = 272,653.29/x
  3. Step 3: Cross multiply
    805,505.31x = 1,207,503.45 × 272,653.29
  4. Step 4: Simplify right side
    805,505.31x = 329,229,788,328.85
  5. Step 5: Solve for x
    x = 329,229,788,328.85/805,505.31
  6. Step 6: Final answer
    x = 408,724.54

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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.