Home / 762,385.52-1,143,286.47-256,810.65

Finding the Fourth Proportional to 762,385.52, 1,143,286.47 and 256,810.65

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Solution

The fourth proportional to 762,385.52, 1,143,286.47 and 256,810.65 is: 385,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,385.52 : 1,143,286.47 = 256,810.65 : x
  2. Step 2: Convert to fraction form
    762,385.52/1,143,286.47 = 256,810.65/x
  3. Step 3: Cross multiply
    762,385.52x = 1,143,286.47 × 256,810.65
  4. Step 4: Simplify right side
    762,385.52x = 293,608,141,496.91
  5. Step 5: Solve for x
    x = 293,608,141,496.91/762,385.52
  6. Step 6: Final answer
    x = 385,117.68

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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.