Home / 1,238,032.20-1,857,048.30-764,984.10

Finding the Fourth Proportional to 1,238,032.20, 1,857,048.30 and 764,984.10

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Solution

The fourth proportional to 1,238,032.20, 1,857,048.30 and 764,984.10 is: 1,147,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,032.20 : 1,857,048.30 = 764,984.10 : x
  2. Step 2: Convert to fraction form
    1,238,032.20/1,857,048.30 = 764,984.10/x
  3. Step 3: Cross multiply
    1,238,032.20x = 1,857,048.30 × 764,984.10
  4. Step 4: Simplify right side
    1,238,032.20x = 1,420,612,422,432.03
  5. Step 5: Solve for x
    x = 1,420,612,422,432.03/1,238,032.20
  6. Step 6: Final answer
    x = 1,147,476.15

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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.