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Finding the Fourth Proportional to 938,271, 1,294,806.69 and 508,540.08

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Solution

The fourth proportional to 938,271, 1,294,806.69 and 508,540.08 is: 701,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,271 : 1,294,806.69 = 508,540.08 : x
  2. Step 2: Convert to fraction form
    938,271/1,294,806.69 = 508,540.08/x
  3. Step 3: Cross multiply
    938,271x = 1,294,806.69 × 508,540.08
  4. Step 4: Simplify right side
    938,271x = 658,461,097,717.14
  5. Step 5: Solve for x
    x = 658,461,097,717.14/938,271
  6. Step 6: Final answer
    x = 701,781.36

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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.