Home / 1,423,792.80-1,964,834.82-779,212.62

Finding the Fourth Proportional to 1,423,792.80, 1,964,834.82 and 779,212.62

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Solution

The fourth proportional to 1,423,792.80, 1,964,834.82 and 779,212.62 is: 1,075,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,792.80 : 1,964,834.82 = 779,212.62 : x
  2. Step 2: Convert to fraction form
    1,423,792.80/1,964,834.82 = 779,212.62/x
  3. Step 3: Cross multiply
    1,423,792.80x = 1,964,834.82 × 779,212.62
  4. Step 4: Simplify right side
    1,423,792.80x = 1,531,024,087,959.43
  5. Step 5: Solve for x
    x = 1,531,024,087,959.43/1,423,792.80
  6. Step 6: Final answer
    x = 1,075,313.83

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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.