Home / 1,408,006.80-2,109,245.40-960,109.20

Finding the Fourth Proportional to 1,408,006.80, 2,109,245.40 and 960,109.20

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Solution

The fourth proportional to 1,408,006.80, 2,109,245.40 and 960,109.20 is: 1,438,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,006.80 : 2,109,245.40 = 960,109.20 : x
  2. Step 2: Convert to fraction form
    1,408,006.80/2,109,245.40 = 960,109.20/x
  3. Step 3: Cross multiply
    1,408,006.80x = 2,109,245.40 × 960,109.20
  4. Step 4: Simplify right side
    1,408,006.80x = 2,025,105,913,597.68
  5. Step 5: Solve for x
    x = 2,025,105,913,597.68/1,408,006.80
  6. Step 6: Final answer
    x = 1,438,278.50

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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.