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Finding the Fourth Proportional to 747,580, 1,121,836.56 and 304,348

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Solution

The fourth proportional to 747,580, 1,121,836.56 and 304,348 is: 456,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,580 : 1,121,836.56 = 304,348 : x
  2. Step 2: Convert to fraction form
    747,580/1,121,836.56 = 304,348/x
  3. Step 3: Cross multiply
    747,580x = 1,121,836.56 × 304,348
  4. Step 4: Simplify right side
    747,580x = 341,428,713,362.88
  5. Step 5: Solve for x
    x = 341,428,713,362.88/747,580
  6. Step 6: Final answer
    x = 456,711.94

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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.