Home / 826,881.80-1,240,322.70-721,905.80

Finding the Fourth Proportional to 826,881.80, 1,240,322.70 and 721,905.80

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Solution

The fourth proportional to 826,881.80, 1,240,322.70 and 721,905.80 is: 1,082,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,881.80 : 1,240,322.70 = 721,905.80 : x
  2. Step 2: Convert to fraction form
    826,881.80/1,240,322.70 = 721,905.80/x
  3. Step 3: Cross multiply
    826,881.80x = 1,240,322.70 × 721,905.80
  4. Step 4: Simplify right side
    826,881.80x = 895,396,151,001.66
  5. Step 5: Solve for x
    x = 895,396,151,001.66/826,881.80
  6. Step 6: Final answer
    x = 1,082,858.70

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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.