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Finding the Fourth Proportional to 447,426.36, 617,461.36 and 243,490.44

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Solution

The fourth proportional to 447,426.36, 617,461.36 and 243,490.44 is: 336,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,426.36 : 617,461.36 = 243,490.44 : x
  2. Step 2: Convert to fraction form
    447,426.36/617,461.36 = 243,490.44/x
  3. Step 3: Cross multiply
    447,426.36x = 617,461.36 × 243,490.44
  4. Step 4: Simplify right side
    447,426.36x = 150,345,938,229.40
  5. Step 5: Solve for x
    x = 150,345,938,229.40/447,426.36
  6. Step 6: Final answer
    x = 336,023.87

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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.