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Finding the Fourth Proportional to 490,240.96, 676,606.18 and 299,364.46

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Solution

The fourth proportional to 490,240.96, 676,606.18 and 299,364.46 is: 413,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,240.96 : 676,606.18 = 299,364.46 : x
  2. Step 2: Convert to fraction form
    490,240.96/676,606.18 = 299,364.46/x
  3. Step 3: Cross multiply
    490,240.96x = 676,606.18 × 299,364.46
  4. Step 4: Simplify right side
    490,240.96x = 202,551,843,708.36
  5. Step 5: Solve for x
    x = 202,551,843,708.36/490,240.96
  6. Step 6: Final answer
    x = 413,167.93

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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.