Home / 768,121.07-1,059,711.43-481,141.55

Finding the Fourth Proportional to 768,121.07, 1,059,711.43 and 481,141.55

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Solution

The fourth proportional to 768,121.07, 1,059,711.43 and 481,141.55 is: 663,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,121.07 : 1,059,711.43 = 481,141.55 : x
  2. Step 2: Convert to fraction form
    768,121.07/1,059,711.43 = 481,141.55/x
  3. Step 3: Cross multiply
    768,121.07x = 1,059,711.43 × 481,141.55
  4. Step 4: Simplify right side
    768,121.07x = 509,871,199,982.92
  5. Step 5: Solve for x
    x = 509,871,199,982.92/768,121.07
  6. Step 6: Final answer
    x = 663,790.15

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1.5x scale

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.