Home / 764,327.80-1,146,491.70-314,899.30

Finding the Fourth Proportional to 764,327.80, 1,146,491.70 and 314,899.30

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Solution

The fourth proportional to 764,327.80, 1,146,491.70 and 314,899.30 is: 472,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,327.80 : 1,146,491.70 = 314,899.30 : x
  2. Step 2: Convert to fraction form
    764,327.80/1,146,491.70 = 314,899.30/x
  3. Step 3: Cross multiply
    764,327.80x = 1,146,491.70 × 314,899.30
  4. Step 4: Simplify right side
    764,327.80x = 361,029,433,785.81
  5. Step 5: Solve for x
    x = 361,029,433,785.81/764,327.80
  6. Step 6: Final answer
    x = 472,348.95

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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.