Home / 1,221,274.32-1,685,560.36-677,585.28

Finding the Fourth Proportional to 1,221,274.32, 1,685,560.36 and 677,585.28

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Solution

The fourth proportional to 1,221,274.32, 1,685,560.36 and 677,585.28 is: 935,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,274.32 : 1,685,560.36 = 677,585.28 : x
  2. Step 2: Convert to fraction form
    1,221,274.32/1,685,560.36 = 677,585.28/x
  3. Step 3: Cross multiply
    1,221,274.32x = 1,685,560.36 × 677,585.28
  4. Step 4: Simplify right side
    1,221,274.32x = 1,142,110,888,487.50
  5. Step 5: Solve for x
    x = 1,142,110,888,487.50/1,221,274.32
  6. Step 6: Final answer
    x = 935,179.65

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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.