Home / 1,181,034.74-1,628,988.14-788,369.69

Finding the Fourth Proportional to 1,181,034.74, 1,628,988.14 and 788,369.69

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Solution

The fourth proportional to 1,181,034.74, 1,628,988.14 and 788,369.69 is: 1,087,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,034.74 : 1,628,988.14 = 788,369.69 : x
  2. Step 2: Convert to fraction form
    1,181,034.74/1,628,988.14 = 788,369.69/x
  3. Step 3: Cross multiply
    1,181,034.74x = 1,628,988.14 × 788,369.69
  4. Step 4: Simplify right side
    1,181,034.74x = 1,284,244,868,771.46
  5. Step 5: Solve for x
    x = 1,284,244,868,771.46/1,181,034.74
  6. Step 6: Final answer
    x = 1,087,389.58

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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.