Home / 1,146,228.68-1,581,136.80-715,761.56

Finding the Fourth Proportional to 1,146,228.68, 1,581,136.80 and 715,761.56

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Solution

The fourth proportional to 1,146,228.68, 1,581,136.80 and 715,761.56 is: 987,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,228.68 : 1,581,136.80 = 715,761.56 : x
  2. Step 2: Convert to fraction form
    1,146,228.68/1,581,136.80 = 715,761.56/x
  3. Step 3: Cross multiply
    1,146,228.68x = 1,581,136.80 × 715,761.56
  4. Step 4: Simplify right side
    1,146,228.68x = 1,131,716,942,541.41
  5. Step 5: Solve for x
    x = 1,131,716,942,541.41/1,146,228.68
  6. Step 6: Final answer
    x = 987,339.58

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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.