Home / 805,217.90-1,207,972.65-404,851.10

Finding the Fourth Proportional to 805,217.90, 1,207,972.65 and 404,851.10

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Solution

The fourth proportional to 805,217.90, 1,207,972.65 and 404,851.10 is: 607,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,217.90 : 1,207,972.65 = 404,851.10 : x
  2. Step 2: Convert to fraction form
    805,217.90/1,207,972.65 = 404,851.10/x
  3. Step 3: Cross multiply
    805,217.90x = 1,207,972.65 × 404,851.10
  4. Step 4: Simplify right side
    805,217.90x = 489,049,056,122.42
  5. Step 5: Solve for x
    x = 489,049,056,122.42/805,217.90
  6. Step 6: Final answer
    x = 607,349.96

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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.