Home / 1,184,837.78-1,635,071.22-640,972.31

Finding the Fourth Proportional to 1,184,837.78, 1,635,071.22 and 640,972.31

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Solution

The fourth proportional to 1,184,837.78, 1,635,071.22 and 640,972.31 is: 884,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,837.78 : 1,635,071.22 = 640,972.31 : x
  2. Step 2: Convert to fraction form
    1,184,837.78/1,635,071.22 = 640,972.31/x
  3. Step 3: Cross multiply
    1,184,837.78x = 1,635,071.22 × 640,972.31
  4. Step 4: Simplify right side
    1,184,837.78x = 1,048,035,368,722.56
  5. Step 5: Solve for x
    x = 1,048,035,368,722.56/1,184,837.78
  6. Step 6: Final answer
    x = 884,539.12

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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.