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Finding the Fourth Proportional to 681,035.22, 939,871.08 and 375,111.54

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Solution

The fourth proportional to 681,035.22, 939,871.08 and 375,111.54 is: 517,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,035.22 : 939,871.08 = 375,111.54 : x
  2. Step 2: Convert to fraction form
    681,035.22/939,871.08 = 375,111.54/x
  3. Step 3: Cross multiply
    681,035.22x = 939,871.08 × 375,111.54
  4. Step 4: Simplify right side
    681,035.22x = 352,556,488,220.26
  5. Step 5: Solve for x
    x = 352,556,488,220.26/681,035.22
  6. Step 6: Final answer
    x = 517,677.32

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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.