Home / 805,224.12-1,207,085.31-272,374.34

Finding the Fourth Proportional to 805,224.12, 1,207,085.31 and 272,374.34

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Solution

The fourth proportional to 805,224.12, 1,207,085.31 and 272,374.34 is: 408,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,224.12 : 1,207,085.31 = 272,374.34 : x
  2. Step 2: Convert to fraction form
    805,224.12/1,207,085.31 = 272,374.34/x
  3. Step 3: Cross multiply
    805,224.12x = 1,207,085.31 × 272,374.34
  4. Step 4: Simplify right side
    805,224.12x = 328,779,058,599.52
  5. Step 5: Solve for x
    x = 328,779,058,599.52/805,224.12
  6. Step 6: Final answer
    x = 408,307.51

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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.