Home / 2,758,683.20-4,138,024.80-764,139.20

Finding the Fourth Proportional to 2,758,683.20, 4,138,024.80 and 764,139.20

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Solution

The fourth proportional to 2,758,683.20, 4,138,024.80 and 764,139.20 is: 1,146,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,683.20 : 4,138,024.80 = 764,139.20 : x
  2. Step 2: Convert to fraction form
    2,758,683.20/4,138,024.80 = 764,139.20/x
  3. Step 3: Cross multiply
    2,758,683.20x = 4,138,024.80 × 764,139.20
  4. Step 4: Simplify right side
    2,758,683.20x = 3,162,026,960,252.16
  5. Step 5: Solve for x
    x = 3,162,026,960,252.16/2,758,683.20
  6. Step 6: Final answer
    x = 1,146,208.80

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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.