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Finding the Fourth Proportional to 578,081.70, 865,081.35 and 504,015.30

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Solution

The fourth proportional to 578,081.70, 865,081.35 and 504,015.30 is: 754,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,081.70 : 865,081.35 = 504,015.30 : x
  2. Step 2: Convert to fraction form
    578,081.70/865,081.35 = 504,015.30/x
  3. Step 3: Cross multiply
    578,081.70x = 865,081.35 × 504,015.30
  4. Step 4: Simplify right side
    578,081.70x = 436,014,236,144.66
  5. Step 5: Solve for x
    x = 436,014,236,144.66/578,081.70
  6. Step 6: Final answer
    x = 754,243.28

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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.