Home / 1,421,845.92-1,962,142.56-777,265.92

Finding the Fourth Proportional to 1,421,845.92, 1,962,142.56 and 777,265.92

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Solution

The fourth proportional to 1,421,845.92, 1,962,142.56 and 777,265.92 is: 1,072,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,845.92 : 1,962,142.56 = 777,265.92 : x
  2. Step 2: Convert to fraction form
    1,421,845.92/1,962,142.56 = 777,265.92/x
  3. Step 3: Cross multiply
    1,421,845.92x = 1,962,142.56 × 777,265.92
  4. Step 4: Simplify right side
    1,421,845.92x = 1,525,106,542,069.56
  5. Step 5: Solve for x
    x = 1,525,106,542,069.56/1,421,845.92
  6. Step 6: Final answer
    x = 1,072,624.34

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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.