Home / 1,145,867.78-1,580,744.67-763,405.22

Finding the Fourth Proportional to 1,145,867.78, 1,580,744.67 and 763,405.22

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Solution

The fourth proportional to 1,145,867.78, 1,580,744.67 and 763,405.22 is: 1,053,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,867.78 : 1,580,744.67 = 763,405.22 : x
  2. Step 2: Convert to fraction form
    1,145,867.78/1,580,744.67 = 763,405.22/x
  3. Step 3: Cross multiply
    1,145,867.78x = 1,580,744.67 × 763,405.22
  4. Step 4: Simplify right side
    1,145,867.78x = 1,206,748,733,654.27
  5. Step 5: Solve for x
    x = 1,206,748,733,654.27/1,145,867.78
  6. Step 6: Final answer
    x = 1,053,130.87

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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.