Home / 764,380.95-1,146,709.32-314,856.46

Finding the Fourth Proportional to 764,380.95, 1,146,709.32 and 314,856.46

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Solution

The fourth proportional to 764,380.95, 1,146,709.32 and 314,856.46 is: 472,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,380.95 : 1,146,709.32 = 314,856.46 : x
  2. Step 2: Convert to fraction form
    764,380.95/1,146,709.32 = 314,856.46/x
  3. Step 3: Cross multiply
    764,380.95x = 1,146,709.32 × 314,856.46
  4. Step 4: Simplify right side
    764,380.95x = 361,048,837,144.21
  5. Step 5: Solve for x
    x = 361,048,837,144.21/764,380.95
  6. Step 6: Final answer
    x = 472,341.49

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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.