Home / 1,994,128.60-2,990,847.30-731,306.20

Finding the Fourth Proportional to 1,994,128.60, 2,990,847.30 and 731,306.20

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Solution

The fourth proportional to 1,994,128.60, 2,990,847.30 and 731,306.20 is: 1,096,832.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,128.60 : 2,990,847.30 = 731,306.20 : x
  2. Step 2: Convert to fraction form
    1,994,128.60/2,990,847.30 = 731,306.20/x
  3. Step 3: Cross multiply
    1,994,128.60x = 2,990,847.30 × 731,306.20
  4. Step 4: Simplify right side
    1,994,128.60x = 2,187,225,173,743.26
  5. Step 5: Solve for x
    x = 2,187,225,173,743.26/1,994,128.60
  6. Step 6: Final answer
    x = 1,096,832.56

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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.