Home / 1,240,666.20-1,861,323.30-399,238.20

Finding the Fourth Proportional to 1,240,666.20, 1,861,323.30 and 399,238.20

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Solution

The fourth proportional to 1,240,666.20, 1,861,323.30 and 399,238.20 is: 598,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,666.20 : 1,861,323.30 = 399,238.20 : x
  2. Step 2: Convert to fraction form
    1,240,666.20/1,861,323.30 = 399,238.20/x
  3. Step 3: Cross multiply
    1,240,666.20x = 1,861,323.30 × 399,238.20
  4. Step 4: Simplify right side
    1,240,666.20x = 743,111,363,910.06
  5. Step 5: Solve for x
    x = 743,111,363,910.06/1,240,666.20
  6. Step 6: Final answer
    x = 598,961.56

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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.