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Finding the Fourth Proportional to 400,404.72, 600,606.60 and 242,678.16

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Solution

The fourth proportional to 400,404.72, 600,606.60 and 242,678.16 is: 364,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,404.72 : 600,606.60 = 242,678.16 : x
  2. Step 2: Convert to fraction form
    400,404.72/600,606.60 = 242,678.16/x
  3. Step 3: Cross multiply
    400,404.72x = 600,606.60 × 242,678.16
  4. Step 4: Simplify right side
    400,404.72x = 145,754,104,571.86
  5. Step 5: Solve for x
    x = 145,754,104,571.86/400,404.72
  6. Step 6: Final answer
    x = 364,016.95

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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.