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Finding the Fourth Proportional to 841,879.17, 1,263,316.98 and 309,773.87

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Solution

The fourth proportional to 841,879.17, 1,263,316.98 and 309,773.87 is: 464,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,879.17 : 1,263,316.98 = 309,773.87 : x
  2. Step 2: Convert to fraction form
    841,879.17/1,263,316.98 = 309,773.87/x
  3. Step 3: Cross multiply
    841,879.17x = 1,263,316.98 × 309,773.87
  4. Step 4: Simplify right side
    841,879.17x = 391,342,583,614.73
  5. Step 5: Solve for x
    x = 391,342,583,614.73/841,879.17
  6. Step 6: Final answer
    x = 464,844.12

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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.