Home / 764,906.16-1,147,315.20-291,639.36

Finding the Fourth Proportional to 764,906.16, 1,147,315.20 and 291,639.36

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Solution

The fourth proportional to 764,906.16, 1,147,315.20 and 291,639.36 is: 437,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,906.16 : 1,147,315.20 = 291,639.36 : x
  2. Step 2: Convert to fraction form
    764,906.16/1,147,315.20 = 291,639.36/x
  3. Step 3: Cross multiply
    764,906.16x = 1,147,315.20 × 291,639.36
  4. Step 4: Simplify right side
    764,906.16x = 334,602,270,646.27
  5. Step 5: Solve for x
    x = 334,602,270,646.27/764,906.16
  6. Step 6: Final answer
    x = 437,442.25

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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.