Home / 1,278,394.70-1,915,119.30-1,070,764.26

Finding the Fourth Proportional to 1,278,394.70, 1,915,119.30 and 1,070,764.26

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Solution

The fourth proportional to 1,278,394.70, 1,915,119.30 and 1,070,764.26 is: 1,604,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,394.70 : 1,915,119.30 = 1,070,764.26 : x
  2. Step 2: Convert to fraction form
    1,278,394.70/1,915,119.30 = 1,070,764.26/x
  3. Step 3: Cross multiply
    1,278,394.70x = 1,915,119.30 × 1,070,764.26
  4. Step 4: Simplify right side
    1,278,394.70x = 2,050,641,301,659.38
  5. Step 5: Solve for x
    x = 2,050,641,301,659.38/1,278,394.70
  6. Step 6: Final answer
    x = 1,604,075.25

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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.