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Finding the Fourth Proportional to 1,291,766.40, 1,935,806.40 and 952,156.80

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Solution

The fourth proportional to 1,291,766.40, 1,935,806.40 and 952,156.80 is: 1,426,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,766.40 : 1,935,806.40 = 952,156.80 : x
  2. Step 2: Convert to fraction form
    1,291,766.40/1,935,806.40 = 952,156.80/x
  3. Step 3: Cross multiply
    1,291,766.40x = 1,935,806.40 × 952,156.80
  4. Step 4: Simplify right side
    1,291,766.40x = 1,843,191,227,243.52
  5. Step 5: Solve for x
    x = 1,843,191,227,243.52/1,291,766.40
  6. Step 6: Final answer
    x = 1,426,876.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.