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Finding the Fourth Proportional to 873,040.02, 1,204,782.89 and 491,066.70

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Solution

The fourth proportional to 873,040.02, 1,204,782.89 and 491,066.70 is: 677,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,040.02 : 1,204,782.89 = 491,066.70 : x
  2. Step 2: Convert to fraction form
    873,040.02/1,204,782.89 = 491,066.70/x
  3. Step 3: Cross multiply
    873,040.02x = 1,204,782.89 × 491,066.70
  4. Step 4: Simplify right side
    873,040.02x = 591,628,758,008.76
  5. Step 5: Solve for x
    x = 591,628,758,008.76/873,040.02
  6. Step 6: Final answer
    x = 677,665.11

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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.