Home / 752,749-1,129,345.31-303,238.56

Finding the Fourth Proportional to 752,749, 1,129,345.31 and 303,238.56

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Solution

The fourth proportional to 752,749, 1,129,345.31 and 303,238.56 is: 454,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,749 : 1,129,345.31 = 303,238.56 : x
  2. Step 2: Convert to fraction form
    752,749/1,129,345.31 = 303,238.56/x
  3. Step 3: Cross multiply
    752,749x = 1,129,345.31 × 303,238.56
  4. Step 4: Simplify right side
    752,749x = 342,461,045,547.15
  5. Step 5: Solve for x
    x = 342,461,045,547.15/752,749
  6. Step 6: Final answer
    x = 454,947.19

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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.