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Finding the Fourth Proportional to 400,808.40, 600,046.20 and 242,955.60

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Solution

The fourth proportional to 400,808.40, 600,046.20 and 242,955.60 is: 363,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,808.40 : 600,046.20 = 242,955.60 : x
  2. Step 2: Convert to fraction form
    400,808.40/600,046.20 = 242,955.60/x
  3. Step 3: Cross multiply
    400,808.40x = 600,046.20 × 242,955.60
  4. Step 4: Simplify right side
    400,808.40x = 145,784,584,548.72
  5. Step 5: Solve for x
    x = 145,784,584,548.72/400,808.40
  6. Step 6: Final answer
    x = 363,726.37

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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.