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Finding the Fourth Proportional to 400,026.60, 600,428.70 and 242,562.60

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Solution

The fourth proportional to 400,026.60, 600,428.70 and 242,562.60 is: 364,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,026.60 : 600,428.70 = 242,562.60 : x
  2. Step 2: Convert to fraction form
    400,026.60/600,428.70 = 242,562.60/x
  3. Step 3: Cross multiply
    400,026.60x = 600,428.70 × 242,562.60
  4. Step 4: Simplify right side
    400,026.60x = 145,641,546,586.62
  5. Step 5: Solve for x
    x = 145,641,546,586.62/400,026.60
  6. Step 6: Final answer
    x = 364,079.66

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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.