Home / 1,421,964.45-1,962,317.87-777,384.65

Finding the Fourth Proportional to 1,421,964.45, 1,962,317.87 and 777,384.65

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Solution

The fourth proportional to 1,421,964.45, 1,962,317.87 and 777,384.65 is: 1,072,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,964.45 : 1,962,317.87 = 777,384.65 : x
  2. Step 2: Convert to fraction form
    1,421,964.45/1,962,317.87 = 777,384.65/x
  3. Step 3: Cross multiply
    1,421,964.45x = 1,962,317.87 × 777,384.65
  4. Step 4: Simplify right side
    1,421,964.45x = 1,525,475,776,860.18
  5. Step 5: Solve for x
    x = 1,525,475,776,860.18/1,421,964.45
  6. Step 6: Final answer
    x = 1,072,794.60

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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.