Home / 1,421,964.72-1,962,318.25-777,384.92

Finding the Fourth Proportional to 1,421,964.72, 1,962,318.25 and 777,384.92

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Solution

The fourth proportional to 1,421,964.72, 1,962,318.25 and 777,384.92 is: 1,072,794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,964.72 : 1,962,318.25 = 777,384.92 : x
  2. Step 2: Convert to fraction form
    1,421,964.72/1,962,318.25 = 777,384.92/x
  3. Step 3: Cross multiply
    1,421,964.72x = 1,962,318.25 × 777,384.92
  4. Step 4: Simplify right side
    1,421,964.72x = 1,525,476,616,149.30
  5. Step 5: Solve for x
    x = 1,525,476,616,149.30/1,421,964.72
  6. Step 6: Final answer
    x = 1,072,794.98

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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.