Home / 2,801,438.40-4,202,157.60-2,780,443.20

Finding the Fourth Proportional to 2,801,438.40, 4,202,157.60 and 2,780,443.20

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Solution

The fourth proportional to 2,801,438.40, 4,202,157.60 and 2,780,443.20 is: 4,170,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,438.40 : 4,202,157.60 = 2,780,443.20 : x
  2. Step 2: Convert to fraction form
    2,801,438.40/4,202,157.60 = 2,780,443.20/x
  3. Step 3: Cross multiply
    2,801,438.40x = 4,202,157.60 × 2,780,443.20
  4. Step 4: Simplify right side
    2,801,438.40x = 11,683,860,524,248.32
  5. Step 5: Solve for x
    x = 11,683,860,524,248.32/2,801,438.40
  6. Step 6: Final answer
    x = 4,170,664.80

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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.