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Finding the Fourth Proportional to 747,630, 1,121,911.56 and 304,398

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Solution

The fourth proportional to 747,630, 1,121,911.56 and 304,398 is: 456,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,630 : 1,121,911.56 = 304,398 : x
  2. Step 2: Convert to fraction form
    747,630/1,121,911.56 = 304,398/x
  3. Step 3: Cross multiply
    747,630x = 1,121,911.56 × 304,398
  4. Step 4: Simplify right side
    747,630x = 341,507,635,040.88
  5. Step 5: Solve for x
    x = 341,507,635,040.88/747,630
  6. Step 6: Final answer
    x = 456,786.96

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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.