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Finding the Fourth Proportional to 505,325.20, 757,987.80 and 239,604.70

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Solution

The fourth proportional to 505,325.20, 757,987.80 and 239,604.70 is: 359,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,325.20 : 757,987.80 = 239,604.70 : x
  2. Step 2: Convert to fraction form
    505,325.20/757,987.80 = 239,604.70/x
  3. Step 3: Cross multiply
    505,325.20x = 757,987.80 × 239,604.70
  4. Step 4: Simplify right side
    505,325.20x = 181,617,439,422.66
  5. Step 5: Solve for x
    x = 181,617,439,422.66/505,325.20
  6. Step 6: Final answer
    x = 359,407.05

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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.