Home / 1,126,576.93-1,554,738.42-643,297.33

Finding the Fourth Proportional to 1,126,576.93, 1,554,738.42 and 643,297.33

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Solution

The fourth proportional to 1,126,576.93, 1,554,738.42 and 643,297.33 is: 887,785.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,576.93 : 1,554,738.42 = 643,297.33 : x
  2. Step 2: Convert to fraction form
    1,126,576.93/1,554,738.42 = 643,297.33/x
  3. Step 3: Cross multiply
    1,126,576.93x = 1,554,738.42 × 643,297.33
  4. Step 4: Simplify right side
    1,126,576.93x = 1,000,159,074,434.42
  5. Step 5: Solve for x
    x = 1,000,159,074,434.42/1,126,576.93
  6. Step 6: Final answer
    x = 887,785.87

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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.