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Finding the Fourth Proportional to 447,490.86, 617,548.77 and 243,552.84

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Solution

The fourth proportional to 447,490.86, 617,548.77 and 243,552.84 is: 336,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,490.86 : 617,548.77 = 243,552.84 : x
  2. Step 2: Convert to fraction form
    447,490.86/617,548.77 = 243,552.84/x
  3. Step 3: Cross multiply
    447,490.86x = 617,548.77 × 243,552.84
  4. Step 4: Simplify right side
    447,490.86x = 150,405,756,772.01
  5. Step 5: Solve for x
    x = 150,405,756,772.01/447,490.86
  6. Step 6: Final answer
    x = 336,109.11

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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.