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Finding the Fourth Proportional to 609,641.40, 915,052.32 and 294,319.56

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Solution

The fourth proportional to 609,641.40, 915,052.32 and 294,319.56 is: 441,764.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,641.40 : 915,052.32 = 294,319.56 : x
  2. Step 2: Convert to fraction form
    609,641.40/915,052.32 = 294,319.56/x
  3. Step 3: Cross multiply
    609,641.40x = 915,052.32 × 294,319.56
  4. Step 4: Simplify right side
    609,641.40x = 269,317,796,199.38
  5. Step 5: Solve for x
    x = 269,317,796,199.38/609,641.40
  6. Step 6: Final answer
    x = 441,764.28

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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.