Home / 763,638.78-1,145,472.75-231,157.74

Finding the Fourth Proportional to 763,638.78, 1,145,472.75 and 231,157.74

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Solution

The fourth proportional to 763,638.78, 1,145,472.75 and 231,157.74 is: 346,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,638.78 : 1,145,472.75 = 231,157.74 : x
  2. Step 2: Convert to fraction form
    763,638.78/1,145,472.75 = 231,157.74/x
  3. Step 3: Cross multiply
    763,638.78x = 1,145,472.75 × 231,157.74
  4. Step 4: Simplify right side
    763,638.78x = 264,784,892,121.59
  5. Step 5: Solve for x
    x = 264,784,892,121.59/763,638.78
  6. Step 6: Final answer
    x = 346,741.02

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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.