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Finding the Fourth Proportional to 504,876.40, 756,002.40 and 399,025.60

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Solution

The fourth proportional to 504,876.40, 756,002.40 and 399,025.60 is: 597,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,876.40 : 756,002.40 = 399,025.60 : x
  2. Step 2: Convert to fraction form
    504,876.40/756,002.40 = 399,025.60/x
  3. Step 3: Cross multiply
    504,876.40x = 756,002.40 × 399,025.60
  4. Step 4: Simplify right side
    504,876.40x = 301,664,311,261.44
  5. Step 5: Solve for x
    x = 301,664,311,261.44/504,876.40
  6. Step 6: Final answer
    x = 597,501.31

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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.