Home / 509,968.20-764,952.30-210,349.20

Finding the Fourth Proportional to 509,968.20, 764,952.30 and 210,349.20

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Solution

The fourth proportional to 509,968.20, 764,952.30 and 210,349.20 is: 315,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,968.20 : 764,952.30 = 210,349.20 : x
  2. Step 2: Convert to fraction form
    509,968.20/764,952.30 = 210,349.20/x
  3. Step 3: Cross multiply
    509,968.20x = 764,952.30 × 210,349.20
  4. Step 4: Simplify right side
    509,968.20x = 160,907,104,343.16
  5. Step 5: Solve for x
    x = 160,907,104,343.16/509,968.20
  6. Step 6: Final answer
    x = 315,523.80

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Double scale
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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.