Home / 762,709.20-1,143,347.49-256,916.22

Finding the Fourth Proportional to 762,709.20, 1,143,347.49 and 256,916.22

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Solution

The fourth proportional to 762,709.20, 1,143,347.49 and 256,916.22 is: 385,133.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,709.20 : 1,143,347.49 = 256,916.22 : x
  2. Step 2: Convert to fraction form
    762,709.20/1,143,347.49 = 256,916.22/x
  3. Step 3: Cross multiply
    762,709.20x = 1,143,347.49 × 256,916.22
  4. Step 4: Simplify right side
    762,709.20x = 293,744,515,277.29
  5. Step 5: Solve for x
    x = 293,744,515,277.29/762,709.20
  6. Step 6: Final answer
    x = 385,133.04

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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.