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Finding the Fourth Proportional to 507,044.75, 699,720.53 and 303,085.76

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Solution

The fourth proportional to 507,044.75, 699,720.53 and 303,085.76 is: 418,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,044.75 : 699,720.53 = 303,085.76 : x
  2. Step 2: Convert to fraction form
    507,044.75/699,720.53 = 303,085.76/x
  3. Step 3: Cross multiply
    507,044.75x = 699,720.53 × 303,085.76
  4. Step 4: Simplify right side
    507,044.75x = 212,075,323,608.62
  5. Step 5: Solve for x
    x = 212,075,323,608.62/507,044.75
  6. Step 6: Final answer
    x = 418,257.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.