Home / 1,431,356.70-1,975,238.78-777,967.22

Finding the Fourth Proportional to 1,431,356.70, 1,975,238.78 and 777,967.22

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Solution

The fourth proportional to 1,431,356.70, 1,975,238.78 and 777,967.22 is: 1,073,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,356.70 : 1,975,238.78 = 777,967.22 : x
  2. Step 2: Convert to fraction form
    1,431,356.70/1,975,238.78 = 777,967.22/x
  3. Step 3: Cross multiply
    1,431,356.70x = 1,975,238.78 × 777,967.22
  4. Step 4: Simplify right side
    1,431,356.70x = 1,536,671,022,512.79
  5. Step 5: Solve for x
    x = 1,536,671,022,512.79/1,431,356.70
  6. Step 6: Final answer
    x = 1,073,576.57

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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.