Home / 1,329,722.40-1,995,231.60-619,384.80

Finding the Fourth Proportional to 1,329,722.40, 1,995,231.60 and 619,384.80

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Solution

The fourth proportional to 1,329,722.40, 1,995,231.60 and 619,384.80 is: 929,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,722.40 : 1,995,231.60 = 619,384.80 : x
  2. Step 2: Convert to fraction form
    1,329,722.40/1,995,231.60 = 619,384.80/x
  3. Step 3: Cross multiply
    1,329,722.40x = 1,995,231.60 × 619,384.80
  4. Step 4: Simplify right side
    1,329,722.40x = 1,235,816,125,519.68
  5. Step 5: Solve for x
    x = 1,235,816,125,519.68/1,329,722.40
  6. Step 6: Final answer
    x = 929,379.04

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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.