Home / 805,972.75-1,207,962.65-406,727.73

Finding the Fourth Proportional to 805,972.75, 1,207,962.65 and 406,727.73

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Solution

The fourth proportional to 805,972.75, 1,207,962.65 and 406,727.73 is: 609,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,972.75 : 1,207,962.65 = 406,727.73 : x
  2. Step 2: Convert to fraction form
    805,972.75/1,207,962.65 = 406,727.73/x
  3. Step 3: Cross multiply
    805,972.75x = 1,207,962.65 × 406,727.73
  4. Step 4: Simplify right side
    805,972.75x = 491,311,907,576.10
  5. Step 5: Solve for x
    x = 491,311,907,576.10/805,972.75
  6. Step 6: Final answer
    x = 609,588.73

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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.