Home / 764,804.90-1,147,316.44-284,991.78

Finding the Fourth Proportional to 764,804.90, 1,147,316.44 and 284,991.78

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Solution

The fourth proportional to 764,804.90, 1,147,316.44 and 284,991.78 is: 427,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,804.90 : 1,147,316.44 = 284,991.78 : x
  2. Step 2: Convert to fraction form
    764,804.90/1,147,316.44 = 284,991.78/x
  3. Step 3: Cross multiply
    764,804.90x = 1,147,316.44 × 284,991.78
  4. Step 4: Simplify right side
    764,804.90x = 326,975,754,458.86
  5. Step 5: Solve for x
    x = 326,975,754,458.86/764,804.90
  6. Step 6: Final answer
    x = 427,528.32

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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.