Home / 2,765,372.80-4,148,059.20-770,828.80

Finding the Fourth Proportional to 2,765,372.80, 4,148,059.20 and 770,828.80

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Solution

The fourth proportional to 2,765,372.80, 4,148,059.20 and 770,828.80 is: 1,156,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,372.80 : 4,148,059.20 = 770,828.80 : x
  2. Step 2: Convert to fraction form
    2,765,372.80/4,148,059.20 = 770,828.80/x
  3. Step 3: Cross multiply
    2,765,372.80x = 4,148,059.20 × 770,828.80
  4. Step 4: Simplify right side
    2,765,372.80x = 3,197,443,495,464.96
  5. Step 5: Solve for x
    x = 3,197,443,495,464.96/2,765,372.80
  6. Step 6: Final answer
    x = 1,156,243.20

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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.