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Finding the Fourth Proportional to 1,320,851.04, 1,822,775.52 and 747,892.12

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Solution

The fourth proportional to 1,320,851.04, 1,822,775.52 and 747,892.12 is: 1,032,091.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,851.04 : 1,822,775.52 = 747,892.12 : x
  2. Step 2: Convert to fraction form
    1,320,851.04/1,822,775.52 = 747,892.12/x
  3. Step 3: Cross multiply
    1,320,851.04x = 1,822,775.52 × 747,892.12
  4. Step 4: Simplify right side
    1,320,851.04x = 1,363,239,447,936.90
  5. Step 5: Solve for x
    x = 1,363,239,447,936.90/1,320,851.04
  6. Step 6: Final answer
    x = 1,032,091.74

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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.