Home / 764,801.80-1,147,202.70-433,025.80

Finding the Fourth Proportional to 764,801.80, 1,147,202.70 and 433,025.80

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Solution

The fourth proportional to 764,801.80, 1,147,202.70 and 433,025.80 is: 649,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,801.80 : 1,147,202.70 = 433,025.80 : x
  2. Step 2: Convert to fraction form
    764,801.80/1,147,202.70 = 433,025.80/x
  3. Step 3: Cross multiply
    764,801.80x = 1,147,202.70 × 433,025.80
  4. Step 4: Simplify right side
    764,801.80x = 496,768,366,929.66
  5. Step 5: Solve for x
    x = 496,768,366,929.66/764,801.80
  6. Step 6: Final answer
    x = 649,538.70

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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.