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Finding the Fourth Proportional to 523,998.72, 785,998.08 and 347,632.56

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Solution

The fourth proportional to 523,998.72, 785,998.08 and 347,632.56 is: 521,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,998.72 : 785,998.08 = 347,632.56 : x
  2. Step 2: Convert to fraction form
    523,998.72/785,998.08 = 347,632.56/x
  3. Step 3: Cross multiply
    523,998.72x = 785,998.08 × 347,632.56
  4. Step 4: Simplify right side
    523,998.72x = 273,238,524,705.49
  5. Step 5: Solve for x
    x = 273,238,524,705.49/523,998.72
  6. Step 6: Final answer
    x = 521,448.84

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.