Home / 1,172,780.09-1,618,424.13-656,538.23

Finding the Fourth Proportional to 1,172,780.09, 1,618,424.13 and 656,538.23

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Solution

The fourth proportional to 1,172,780.09, 1,618,424.13 and 656,538.23 is: 906,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,780.09 : 1,618,424.13 = 656,538.23 : x
  2. Step 2: Convert to fraction form
    1,172,780.09/1,618,424.13 = 656,538.23/x
  3. Step 3: Cross multiply
    1,172,780.09x = 1,618,424.13 × 656,538.23
  4. Step 4: Simplify right side
    1,172,780.09x = 1,062,557,305,607.37
  5. Step 5: Solve for x
    x = 1,062,557,305,607.37/1,172,780.09
  6. Step 6: Final answer
    x = 906,015.82

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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.