Home / 1,492,645.20-2,238,967.80-1,377,171.60

Finding the Fourth Proportional to 1,492,645.20, 2,238,967.80 and 1,377,171.60

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Solution

The fourth proportional to 1,492,645.20, 2,238,967.80 and 1,377,171.60 is: 2,065,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,645.20 : 2,238,967.80 = 1,377,171.60 : x
  2. Step 2: Convert to fraction form
    1,492,645.20/2,238,967.80 = 1,377,171.60/x
  3. Step 3: Cross multiply
    1,492,645.20x = 2,238,967.80 × 1,377,171.60
  4. Step 4: Simplify right side
    1,492,645.20x = 3,083,442,867,474.48
  5. Step 5: Solve for x
    x = 3,083,442,867,474.48/1,492,645.20
  6. Step 6: Final answer
    x = 2,065,757.40

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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.