Home / 1,332,970.83-1,839,491.37-721,121.13

Finding the Fourth Proportional to 1,332,970.83, 1,839,491.37 and 721,121.13

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Solution

The fourth proportional to 1,332,970.83, 1,839,491.37 and 721,121.13 is: 995,142.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,970.83 : 1,839,491.37 = 721,121.13 : x
  2. Step 2: Convert to fraction form
    1,332,970.83/1,839,491.37 = 721,121.13/x
  3. Step 3: Cross multiply
    1,332,970.83x = 1,839,491.37 × 721,121.13
  4. Step 4: Simplify right side
    1,332,970.83x = 1,326,496,095,359.65
  5. Step 5: Solve for x
    x = 1,326,496,095,359.65/1,332,970.83
  6. Step 6: Final answer
    x = 995,142.63

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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.