Home / 764,257.33-1,146,411.51-343,534.42

Finding the Fourth Proportional to 764,257.33, 1,146,411.51 and 343,534.42

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Solution

The fourth proportional to 764,257.33, 1,146,411.51 and 343,534.42 is: 515,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,257.33 : 1,146,411.51 = 343,534.42 : x
  2. Step 2: Convert to fraction form
    764,257.33/1,146,411.51 = 343,534.42/x
  3. Step 3: Cross multiply
    764,257.33x = 1,146,411.51 × 343,534.42
  4. Step 4: Simplify right side
    764,257.33x = 393,831,813,169.17
  5. Step 5: Solve for x
    x = 393,831,813,169.17/764,257.33
  6. Step 6: Final answer
    x = 515,313.10

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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.