Home / 1,223,512.75-1,689,061.08-764,882.20

Finding the Fourth Proportional to 1,223,512.75, 1,689,061.08 and 764,882.20

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Solution

The fourth proportional to 1,223,512.75, 1,689,061.08 and 764,882.20 is: 1,055,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,512.75 : 1,689,061.08 = 764,882.20 : x
  2. Step 2: Convert to fraction form
    1,223,512.75/1,689,061.08 = 764,882.20/x
  3. Step 3: Cross multiply
    1,223,512.75x = 1,689,061.08 × 764,882.20
  4. Step 4: Simplify right side
    1,223,512.75x = 1,291,932,754,804.78
  5. Step 5: Solve for x
    x = 1,291,932,754,804.78/1,223,512.75
  6. Step 6: Final answer
    x = 1,055,920.96

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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.