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Finding the Fourth Proportional to 891,774.66, 1,337,662.91 and 418,460.48

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Solution

The fourth proportional to 891,774.66, 1,337,662.91 and 418,460.48 is: 627,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,774.66 : 1,337,662.91 = 418,460.48 : x
  2. Step 2: Convert to fraction form
    891,774.66/1,337,662.91 = 418,460.48/x
  3. Step 3: Cross multiply
    891,774.66x = 1,337,662.91 × 418,460.48
  4. Step 4: Simplify right side
    891,774.66x = 559,759,063,396.80
  5. Step 5: Solve for x
    x = 559,759,063,396.80/891,774.66
  6. Step 6: Final answer
    x = 627,691.15

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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.