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Finding the Fourth Proportional to 841,883.88, 1,263,324.03 and 309,778.56

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Solution

The fourth proportional to 841,883.88, 1,263,324.03 and 309,778.56 is: 464,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,883.88 : 1,263,324.03 = 309,778.56 : x
  2. Step 2: Convert to fraction form
    841,883.88/1,263,324.03 = 309,778.56/x
  3. Step 3: Cross multiply
    841,883.88x = 1,263,324.03 × 309,778.56
  4. Step 4: Simplify right side
    841,883.88x = 391,350,698,826.80
  5. Step 5: Solve for x
    x = 391,350,698,826.80/841,883.88
  6. Step 6: Final answer
    x = 464,851.16

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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.