Home / 764,122.94-1,146,118.34-258,673.14

Finding the Fourth Proportional to 764,122.94, 1,146,118.34 and 258,673.14

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Solution

The fourth proportional to 764,122.94, 1,146,118.34 and 258,673.14 is: 387,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,122.94 : 1,146,118.34 = 258,673.14 : x
  2. Step 2: Convert to fraction form
    764,122.94/1,146,118.34 = 258,673.14/x
  3. Step 3: Cross multiply
    764,122.94x = 1,146,118.34 × 258,673.14
  4. Step 4: Simplify right side
    764,122.94x = 296,470,029,819.39
  5. Step 5: Solve for x
    x = 296,470,029,819.39/764,122.94
  6. Step 6: Final answer
    x = 387,987.34

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Double scale
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Similar ratio
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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.