Home / 1,310,740.28-1,966,180.46-412,252.05

Finding the Fourth Proportional to 1,310,740.28, 1,966,180.46 and 412,252.05

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Solution

The fourth proportional to 1,310,740.28, 1,966,180.46 and 412,252.05 is: 618,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,740.28 : 1,966,180.46 = 412,252.05 : x
  2. Step 2: Convert to fraction form
    1,310,740.28/1,966,180.46 = 412,252.05/x
  3. Step 3: Cross multiply
    1,310,740.28x = 1,966,180.46 × 412,252.05
  4. Step 4: Simplify right side
    1,310,740.28x = 810,561,923,243.68
  5. Step 5: Solve for x
    x = 810,561,923,243.68/1,310,740.28
  6. Step 6: Final answer
    x = 618,400.10

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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.