Home / 805,442.85-1,208,081.12-272,950.11

Finding the Fourth Proportional to 805,442.85, 1,208,081.12 and 272,950.11

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Solution

The fourth proportional to 805,442.85, 1,208,081.12 and 272,950.11 is: 409,396.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,442.85 : 1,208,081.12 = 272,950.11 : x
  2. Step 2: Convert to fraction form
    805,442.85/1,208,081.12 = 272,950.11/x
  3. Step 3: Cross multiply
    805,442.85x = 1,208,081.12 × 272,950.11
  4. Step 4: Simplify right side
    805,442.85x = 329,745,873,228.17
  5. Step 5: Solve for x
    x = 329,745,873,228.17/805,442.85
  6. Step 6: Final answer
    x = 409,396.98

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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.