Home / 1,313,071.16-1,969,604.84-513,791.78

Finding the Fourth Proportional to 1,313,071.16, 1,969,604.84 and 513,791.78

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Solution

The fourth proportional to 1,313,071.16, 1,969,604.84 and 513,791.78 is: 770,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,071.16 : 1,969,604.84 = 513,791.78 : x
  2. Step 2: Convert to fraction form
    1,313,071.16/1,969,604.84 = 513,791.78/x
  3. Step 3: Cross multiply
    1,313,071.16x = 1,969,604.84 × 513,791.78
  4. Step 4: Simplify right side
    1,313,071.16x = 1,011,966,768,076.67
  5. Step 5: Solve for x
    x = 1,011,966,768,076.67/1,313,071.16
  6. Step 6: Final answer
    x = 770,686.92

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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.