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Finding the Fourth Proportional to 607,372.31, 911,613.32 and 308,059.49

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Solution

The fourth proportional to 607,372.31, 911,613.32 and 308,059.49 is: 462,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,372.31 : 911,613.32 = 308,059.49 : x
  2. Step 2: Convert to fraction form
    607,372.31/911,613.32 = 308,059.49/x
  3. Step 3: Cross multiply
    607,372.31x = 911,613.32 × 308,059.49
  4. Step 4: Simplify right side
    607,372.31x = 280,831,128,338.04
  5. Step 5: Solve for x
    x = 280,831,128,338.04/607,372.31
  6. Step 6: Final answer
    x = 462,370.65

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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.