Home / 1,228,110.30-1,842,165.45-687,811.95

Finding the Fourth Proportional to 1,228,110.30, 1,842,165.45 and 687,811.95

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Solution

The fourth proportional to 1,228,110.30, 1,842,165.45 and 687,811.95 is: 1,031,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,110.30 : 1,842,165.45 = 687,811.95 : x
  2. Step 2: Convert to fraction form
    1,228,110.30/1,842,165.45 = 687,811.95/x
  3. Step 3: Cross multiply
    1,228,110.30x = 1,842,165.45 × 687,811.95
  4. Step 4: Simplify right side
    1,228,110.30x = 1,267,063,410,387.13
  5. Step 5: Solve for x
    x = 1,267,063,410,387.13/1,228,110.30
  6. Step 6: Final answer
    x = 1,031,717.93

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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.