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Finding the Fourth Proportional to 1,995,686.40, 2,993,918.40 and 797,404.80

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Solution

The fourth proportional to 1,995,686.40, 2,993,918.40 and 797,404.80 is: 1,196,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,686.40 : 2,993,918.40 = 797,404.80 : x
  2. Step 2: Convert to fraction form
    1,995,686.40/2,993,918.40 = 797,404.80/x
  3. Step 3: Cross multiply
    1,995,686.40x = 2,993,918.40 × 797,404.80
  4. Step 4: Simplify right side
    1,995,686.40x = 2,387,364,902,968.32
  5. Step 5: Solve for x
    x = 2,387,364,902,968.32/1,995,686.40
  6. Step 6: Final answer
    x = 1,196,262.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.