Home / 1,181,034.36-1,628,987.63-788,369.31

Finding the Fourth Proportional to 1,181,034.36, 1,628,987.63 and 788,369.31

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Solution

The fourth proportional to 1,181,034.36, 1,628,987.63 and 788,369.31 is: 1,087,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,034.36 : 1,628,987.63 = 788,369.31 : x
  2. Step 2: Convert to fraction form
    1,181,034.36/1,628,987.63 = 788,369.31/x
  3. Step 3: Cross multiply
    1,181,034.36x = 1,628,987.63 × 788,369.31
  4. Step 4: Simplify right side
    1,181,034.36x = 1,284,243,849,919.79
  5. Step 5: Solve for x
    x = 1,284,243,849,919.79/1,181,034.36
  6. Step 6: Final answer
    x = 1,087,389.07

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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.