Home / 1,286,901.78-1,776,081.95-743,036.66

Finding the Fourth Proportional to 1,286,901.78, 1,776,081.95 and 743,036.66

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Solution

The fourth proportional to 1,286,901.78, 1,776,081.95 and 743,036.66 is: 1,025,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,901.78 : 1,776,081.95 = 743,036.66 : x
  2. Step 2: Convert to fraction form
    1,286,901.78/1,776,081.95 = 743,036.66/x
  3. Step 3: Cross multiply
    1,286,901.78x = 1,776,081.95 × 743,036.66
  4. Step 4: Simplify right side
    1,286,901.78x = 1,319,693,991,133.88
  5. Step 5: Solve for x
    x = 1,319,693,991,133.88/1,286,901.78
  6. Step 6: Final answer
    x = 1,025,481.52

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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.