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Finding the Fourth Proportional to 520,002.37, 780,003.56 and 140,923.08

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Solution

The fourth proportional to 520,002.37, 780,003.56 and 140,923.08 is: 211,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,002.37 : 780,003.56 = 140,923.08 : x
  2. Step 2: Convert to fraction form
    520,002.37/780,003.56 = 140,923.08/x
  3. Step 3: Cross multiply
    520,002.37x = 780,003.56 × 140,923.08
  4. Step 4: Simplify right side
    520,002.37x = 109,920,504,086.17
  5. Step 5: Solve for x
    x = 109,920,504,086.17/520,002.37
  6. Step 6: Final answer
    x = 211,384.62

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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.