Home / 764,481.30-1,147,607.78-410,187.30

Finding the Fourth Proportional to 764,481.30, 1,147,607.78 and 410,187.30

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Solution

The fourth proportional to 764,481.30, 1,147,607.78 and 410,187.30 is: 615,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,481.30 : 1,147,607.78 = 410,187.30 : x
  2. Step 2: Convert to fraction form
    764,481.30/1,147,607.78 = 410,187.30/x
  3. Step 3: Cross multiply
    764,481.30x = 1,147,607.78 × 410,187.30
  4. Step 4: Simplify right side
    764,481.30x = 470,734,130,999.16
  5. Step 5: Solve for x
    x = 470,734,130,999.16/764,481.30
  6. Step 6: Final answer
    x = 615,756.24

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Double scale
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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.