Home / 1,382,001.91-1,907,136.71-770,141.19

Finding the Fourth Proportional to 1,382,001.91, 1,907,136.71 and 770,141.19

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Solution

The fourth proportional to 1,382,001.91, 1,907,136.71 and 770,141.19 is: 1,062,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,001.91 : 1,907,136.71 = 770,141.19 : x
  2. Step 2: Convert to fraction form
    1,382,001.91/1,907,136.71 = 770,141.19/x
  3. Step 3: Cross multiply
    1,382,001.91x = 1,907,136.71 × 770,141.19
  4. Step 4: Simplify right side
    1,382,001.91x = 1,468,764,535,332.08
  5. Step 5: Solve for x
    x = 1,468,764,535,332.08/1,382,001.91
  6. Step 6: Final answer
    x = 1,062,780.39

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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.