Home / 762,169.92-1,143,299.76-256,688.64

Finding the Fourth Proportional to 762,169.92, 1,143,299.76 and 256,688.64

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Solution

The fourth proportional to 762,169.92, 1,143,299.76 and 256,688.64 is: 385,048.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,169.92 : 1,143,299.76 = 256,688.64 : x
  2. Step 2: Convert to fraction form
    762,169.92/1,143,299.76 = 256,688.64/x
  3. Step 3: Cross multiply
    762,169.92x = 1,143,299.76 × 256,688.64
  4. Step 4: Simplify right side
    762,169.92x = 293,472,060,506.73
  5. Step 5: Solve for x
    x = 293,472,060,506.73/762,169.92
  6. Step 6: Final answer
    x = 385,048.07

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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.