Home / 764,056.54-1,146,122.87-290,778.58

Finding the Fourth Proportional to 764,056.54, 1,146,122.87 and 290,778.58

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Solution

The fourth proportional to 764,056.54, 1,146,122.87 and 290,778.58 is: 436,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,056.54 : 1,146,122.87 = 290,778.58 : x
  2. Step 2: Convert to fraction form
    764,056.54/1,146,122.87 = 290,778.58/x
  3. Step 3: Cross multiply
    764,056.54x = 1,146,122.87 × 290,778.58
  4. Step 4: Simplify right side
    764,056.54x = 333,267,976,629.39
  5. Step 5: Solve for x
    x = 333,267,976,629.39/764,056.54
  6. Step 6: Final answer
    x = 436,182.35

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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.