Home / 1,296,126.40-1,942,634.40-664,715.20

Finding the Fourth Proportional to 1,296,126.40, 1,942,634.40 and 664,715.20

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Solution

The fourth proportional to 1,296,126.40, 1,942,634.40 and 664,715.20 is: 996,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,126.40 : 1,942,634.40 = 664,715.20 : x
  2. Step 2: Convert to fraction form
    1,296,126.40/1,942,634.40 = 664,715.20/x
  3. Step 3: Cross multiply
    1,296,126.40x = 1,942,634.40 × 664,715.20
  4. Step 4: Simplify right side
    1,296,126.40x = 1,291,298,613,722.88
  5. Step 5: Solve for x
    x = 1,291,298,613,722.88/1,296,126.40
  6. Step 6: Final answer
    x = 996,275.22

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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.