Home / 1,865,011.40-2,797,517.10-978,432.20

Finding the Fourth Proportional to 1,865,011.40, 2,797,517.10 and 978,432.20

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Solution

The fourth proportional to 1,865,011.40, 2,797,517.10 and 978,432.20 is: 1,467,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,011.40 : 2,797,517.10 = 978,432.20 : x
  2. Step 2: Convert to fraction form
    1,865,011.40/2,797,517.10 = 978,432.20/x
  3. Step 3: Cross multiply
    1,865,011.40x = 2,797,517.10 × 978,432.20
  4. Step 4: Simplify right side
    1,865,011.40x = 2,737,180,810,690.62
  5. Step 5: Solve for x
    x = 2,737,180,810,690.62/1,865,011.40
  6. Step 6: Final answer
    x = 1,467,648.30

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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.