Home / 764,115.11-1,146,412.70-315,047.33

Finding the Fourth Proportional to 764,115.11, 1,146,412.70 and 315,047.33

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Solution

The fourth proportional to 764,115.11, 1,146,412.70 and 315,047.33 is: 472,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,115.11 : 1,146,412.70 = 315,047.33 : x
  2. Step 2: Convert to fraction form
    764,115.11/1,146,412.70 = 315,047.33/x
  3. Step 3: Cross multiply
    764,115.11x = 1,146,412.70 × 315,047.33
  4. Step 4: Simplify right side
    764,115.11x = 361,174,252,905.79
  5. Step 5: Solve for x
    x = 361,174,252,905.79/764,115.11
  6. Step 6: Final answer
    x = 472,669.96

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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.