Home / 1,428,788.44-1,971,725.43-816,952.69

Finding the Fourth Proportional to 1,428,788.44, 1,971,725.43 and 816,952.69

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Solution

The fourth proportional to 1,428,788.44, 1,971,725.43 and 816,952.69 is: 1,127,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,788.44 : 1,971,725.43 = 816,952.69 : x
  2. Step 2: Convert to fraction form
    1,428,788.44/1,971,725.43 = 816,952.69/x
  3. Step 3: Cross multiply
    1,428,788.44x = 1,971,725.43 × 816,952.69
  4. Step 4: Simplify right side
    1,428,788.44x = 1,610,806,393,979.91
  5. Step 5: Solve for x
    x = 1,610,806,393,979.91/1,428,788.44
  6. Step 6: Final answer
    x = 1,127,393.22

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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.