Home / 764,290.71-1,146,434.72-203,325.21

Finding the Fourth Proportional to 764,290.71, 1,146,434.72 and 203,325.21

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Solution

The fourth proportional to 764,290.71, 1,146,434.72 and 203,325.21 is: 304,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,290.71 : 1,146,434.72 = 203,325.21 : x
  2. Step 2: Convert to fraction form
    764,290.71/1,146,434.72 = 203,325.21/x
  3. Step 3: Cross multiply
    764,290.71x = 1,146,434.72 × 203,325.21
  4. Step 4: Simplify right side
    764,290.71x = 233,099,079,178.67
  5. Step 5: Solve for x
    x = 233,099,079,178.67/764,290.71
  6. Step 6: Final answer
    x = 304,987.46

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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.