Home / 1,278,395.45-1,915,120.43-1,070,765.01

Finding the Fourth Proportional to 1,278,395.45, 1,915,120.43 and 1,070,765.01

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Solution

The fourth proportional to 1,278,395.45, 1,915,120.43 and 1,070,765.01 is: 1,604,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,395.45 : 1,915,120.43 = 1,070,765.01 : x
  2. Step 2: Convert to fraction form
    1,278,395.45/1,915,120.43 = 1,070,765.01/x
  3. Step 3: Cross multiply
    1,278,395.45x = 1,915,120.43 × 1,070,765.01
  4. Step 4: Simplify right side
    1,278,395.45x = 2,050,643,941,026.33
  5. Step 5: Solve for x
    x = 2,050,643,941,026.33/1,278,395.45
  6. Step 6: Final answer
    x = 1,604,076.37

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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.