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Finding the Fourth Proportional to 490,753.47, 677,233.11 and 272,960.07

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Solution

The fourth proportional to 490,753.47, 677,233.11 and 272,960.07 is: 376,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,753.47 : 677,233.11 = 272,960.07 : x
  2. Step 2: Convert to fraction form
    490,753.47/677,233.11 = 272,960.07/x
  3. Step 3: Cross multiply
    490,753.47x = 677,233.11 × 272,960.07
  4. Step 4: Simplify right side
    490,753.47x = 184,857,597,111.92
  5. Step 5: Solve for x
    x = 184,857,597,111.92/490,753.47
  6. Step 6: Final answer
    x = 376,681.18

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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.