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Finding the Fourth Proportional to 608,796.85, 840,140.64 and 336,876.22

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Solution

The fourth proportional to 608,796.85, 840,140.64 and 336,876.22 is: 464,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,796.85 : 840,140.64 = 336,876.22 : x
  2. Step 2: Convert to fraction form
    608,796.85/840,140.64 = 336,876.22/x
  3. Step 3: Cross multiply
    608,796.85x = 840,140.64 × 336,876.22
  4. Step 4: Simplify right side
    608,796.85x = 283,023,403,071.58
  5. Step 5: Solve for x
    x = 283,023,403,071.58/608,796.85
  6. Step 6: Final answer
    x = 464,889.73

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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.