Home / 1,421,713.27-1,961,964.38-777,136.02

Finding the Fourth Proportional to 1,421,713.27, 1,961,964.38 and 777,136.02

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Solution

The fourth proportional to 1,421,713.27, 1,961,964.38 and 777,136.02 is: 1,072,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,713.27 : 1,961,964.38 = 777,136.02 : x
  2. Step 2: Convert to fraction form
    1,421,713.27/1,961,964.38 = 777,136.02/x
  3. Step 3: Cross multiply
    1,421,713.27x = 1,961,964.38 × 777,136.02
  4. Step 4: Simplify right side
    1,421,713.27x = 1,524,713,195,276.49
  5. Step 5: Solve for x
    x = 1,524,713,195,276.49/1,421,713.27
  6. Step 6: Final answer
    x = 1,072,447.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.