Home / 771,231.92-1,156,813.80-210,266.48

Finding the Fourth Proportional to 771,231.92, 1,156,813.80 and 210,266.48

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Solution

The fourth proportional to 771,231.92, 1,156,813.80 and 210,266.48 is: 315,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,231.92 : 1,156,813.80 = 210,266.48 : x
  2. Step 2: Convert to fraction form
    771,231.92/1,156,813.80 = 210,266.48/x
  3. Step 3: Cross multiply
    771,231.92x = 1,156,813.80 × 210,266.48
  4. Step 4: Simplify right side
    771,231.92x = 243,239,165,741.42
  5. Step 5: Solve for x
    x = 243,239,165,741.42/771,231.92
  6. Step 6: Final answer
    x = 315,390.43

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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.