Home / 1,289,309.57-1,779,295.23-773,147.51

Finding the Fourth Proportional to 1,289,309.57, 1,779,295.23 and 773,147.51

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Solution

The fourth proportional to 1,289,309.57, 1,779,295.23 and 773,147.51 is: 1,066,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,309.57 : 1,779,295.23 = 773,147.51 : x
  2. Step 2: Convert to fraction form
    1,289,309.57/1,779,295.23 = 773,147.51/x
  3. Step 3: Cross multiply
    1,289,309.57x = 1,779,295.23 × 773,147.51
  4. Step 4: Simplify right side
    1,289,309.57x = 1,375,657,667,732.90
  5. Step 5: Solve for x
    x = 1,375,657,667,732.90/1,289,309.57
  6. Step 6: Final answer
    x = 1,066,972.36

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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.