Home / 763,786.80-1,145,388.60-231,130.80

Finding the Fourth Proportional to 763,786.80, 1,145,388.60 and 231,130.80

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Solution

The fourth proportional to 763,786.80, 1,145,388.60 and 231,130.80 is: 346,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,786.80 : 1,145,388.60 = 231,130.80 : x
  2. Step 2: Convert to fraction form
    763,786.80/1,145,388.60 = 231,130.80/x
  3. Step 3: Cross multiply
    763,786.80x = 1,145,388.60 × 231,130.80
  4. Step 4: Simplify right side
    763,786.80x = 264,734,583,428.88
  5. Step 5: Solve for x
    x = 264,734,583,428.88/763,786.80
  6. Step 6: Final answer
    x = 346,607.96

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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.