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Finding the Fourth Proportional to 541,855.79, 747,785.61 and 300,138.34

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Solution

The fourth proportional to 541,855.79, 747,785.61 and 300,138.34 is: 414,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,855.79 : 747,785.61 = 300,138.34 : x
  2. Step 2: Convert to fraction form
    541,855.79/747,785.61 = 300,138.34/x
  3. Step 3: Cross multiply
    541,855.79x = 747,785.61 × 300,138.34
  4. Step 4: Simplify right side
    541,855.79x = 224,439,128,668.71
  5. Step 5: Solve for x
    x = 224,439,128,668.71/541,855.79
  6. Step 6: Final answer
    x = 414,204.54

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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.