Home / 1,126,917.45-1,554,557.78-691,431.95

Finding the Fourth Proportional to 1,126,917.45, 1,554,557.78 and 691,431.95

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Solution

The fourth proportional to 1,126,917.45, 1,554,557.78 and 691,431.95 is: 953,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,917.45 : 1,554,557.78 = 691,431.95 : x
  2. Step 2: Convert to fraction form
    1,126,917.45/1,554,557.78 = 691,431.95/x
  3. Step 3: Cross multiply
    1,126,917.45x = 1,554,557.78 × 691,431.95
  4. Step 4: Simplify right side
    1,126,917.45x = 1,074,870,905,983.12
  5. Step 5: Solve for x
    x = 1,074,870,905,983.12/1,126,917.45
  6. Step 6: Final answer
    x = 953,815.12

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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.