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Finding the Fourth Proportional to 819,728.02, 1,229,674 and 251,102.52

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Solution

The fourth proportional to 819,728.02, 1,229,674 and 251,102.52 is: 376,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,728.02 : 1,229,674 = 251,102.52 : x
  2. Step 2: Convert to fraction form
    819,728.02/1,229,674 = 251,102.52/x
  3. Step 3: Cross multiply
    819,728.02x = 1,229,674 × 251,102.52
  4. Step 4: Simplify right side
    819,728.02x = 308,774,240,178.48
  5. Step 5: Solve for x
    x = 308,774,240,178.48/819,728.02
  6. Step 6: Final answer
    x = 376,678.89

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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.