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Finding the Fourth Proportional to 555,729.73, 766,907.78 and 301,080.92

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Solution

The fourth proportional to 555,729.73, 766,907.78 and 301,080.92 is: 415,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,729.73 : 766,907.78 = 301,080.92 : x
  2. Step 2: Convert to fraction form
    555,729.73/766,907.78 = 301,080.92/x
  3. Step 3: Cross multiply
    555,729.73x = 766,907.78 × 301,080.92
  4. Step 4: Simplify right side
    555,729.73x = 230,901,294,617.61
  5. Step 5: Solve for x
    x = 230,901,294,617.61/555,729.73
  6. Step 6: Final answer
    x = 415,492.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.