Home / 1,187,870-1,780,958.52-556,439.36

Finding the Fourth Proportional to 1,187,870, 1,780,958.52 and 556,439.36

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Solution

The fourth proportional to 1,187,870, 1,780,958.52 and 556,439.36 is: 834,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,870 : 1,780,958.52 = 556,439.36 : x
  2. Step 2: Convert to fraction form
    1,187,870/1,780,958.52 = 556,439.36/x
  3. Step 3: Cross multiply
    1,187,870x = 1,780,958.52 × 556,439.36
  4. Step 4: Simplify right side
    1,187,870x = 990,995,419,055.35
  5. Step 5: Solve for x
    x = 990,995,419,055.35/1,187,870
  6. Step 6: Final answer
    x = 834,262.52

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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.