Home / 2,135,311.20-2,946,704.40-1,168,430.40

Finding the Fourth Proportional to 2,135,311.20, 2,946,704.40 and 1,168,430.40

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Solution

The fourth proportional to 2,135,311.20, 2,946,704.40 and 1,168,430.40 is: 1,612,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,311.20 : 2,946,704.40 = 1,168,430.40 : x
  2. Step 2: Convert to fraction form
    2,135,311.20/2,946,704.40 = 1,168,430.40/x
  3. Step 3: Cross multiply
    2,135,311.20x = 2,946,704.40 × 1,168,430.40
  4. Step 4: Simplify right side
    2,135,311.20x = 3,443,019,000,773.76
  5. Step 5: Solve for x
    x = 3,443,019,000,773.76/2,135,311.20
  6. Step 6: Final answer
    x = 1,612,420.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.