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Finding the Fourth Proportional to 447,371.74, 617,354.42 and 243,423.46

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Solution

The fourth proportional to 447,371.74, 617,354.42 and 243,423.46 is: 335,914.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,371.74 : 617,354.42 = 243,423.46 : x
  2. Step 2: Convert to fraction form
    447,371.74/617,354.42 = 243,423.46/x
  3. Step 3: Cross multiply
    447,371.74x = 617,354.42 × 243,423.46
  4. Step 4: Simplify right side
    447,371.74x = 150,278,548,962.69
  5. Step 5: Solve for x
    x = 150,278,548,962.69/447,371.74
  6. Step 6: Final answer
    x = 335,914.26

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1.5x scale

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.