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Finding the Fourth Proportional to 504,999.70, 757,499.55 and 239,279.20

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Solution

The fourth proportional to 504,999.70, 757,499.55 and 239,279.20 is: 358,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,999.70 : 757,499.55 = 239,279.20 : x
  2. Step 2: Convert to fraction form
    504,999.70/757,499.55 = 239,279.20/x
  3. Step 3: Cross multiply
    504,999.70x = 757,499.55 × 239,279.20
  4. Step 4: Simplify right side
    504,999.70x = 181,253,886,324.36
  5. Step 5: Solve for x
    x = 181,253,886,324.36/504,999.70
  6. Step 6: Final answer
    x = 358,918.80

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Similar ratio
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1.5x scale

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.