Home / 3,120,157.40-4,677,903.30-1,321,568.60

Finding the Fourth Proportional to 3,120,157.40, 4,677,903.30 and 1,321,568.60

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Solution

The fourth proportional to 3,120,157.40, 4,677,903.30 and 1,321,568.60 is: 1,981,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,157.40 : 4,677,903.30 = 1,321,568.60 : x
  2. Step 2: Convert to fraction form
    3,120,157.40/4,677,903.30 = 1,321,568.60/x
  3. Step 3: Cross multiply
    3,120,157.40x = 4,677,903.30 × 1,321,568.60
  4. Step 4: Simplify right side
    3,120,157.40x = 6,182,170,115,116.38
  5. Step 5: Solve for x
    x = 6,182,170,115,116.38/3,120,157.40
  6. Step 6: Final answer
    x = 1,981,364.82

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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.