Home / 1,221,356.26-1,685,498.66-677,474.34

Finding the Fourth Proportional to 1,221,356.26, 1,685,498.66 and 677,474.34

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Solution

The fourth proportional to 1,221,356.26, 1,685,498.66 and 677,474.34 is: 934,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,356.26 : 1,685,498.66 = 677,474.34 : x
  2. Step 2: Convert to fraction form
    1,221,356.26/1,685,498.66 = 677,474.34/x
  3. Step 3: Cross multiply
    1,221,356.26x = 1,685,498.66 × 677,474.34
  4. Step 4: Simplify right side
    1,221,356.26x = 1,141,882,092,254.38
  5. Step 5: Solve for x
    x = 1,141,882,092,254.38/1,221,356.26
  6. Step 6: Final answer
    x = 934,929.58

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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.