Home / 762,259.97-1,143,099.31-256,685.20

Finding the Fourth Proportional to 762,259.97, 1,143,099.31 and 256,685.20

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Solution

The fourth proportional to 762,259.97, 1,143,099.31 and 256,685.20 is: 384,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,259.97 : 1,143,099.31 = 256,685.20 : x
  2. Step 2: Convert to fraction form
    762,259.97/1,143,099.31 = 256,685.20/x
  3. Step 3: Cross multiply
    762,259.97x = 1,143,099.31 × 256,685.20
  4. Step 4: Simplify right side
    762,259.97x = 293,416,677,864.96
  5. Step 5: Solve for x
    x = 293,416,677,864.96/762,259.97
  6. Step 6: Final answer
    x = 384,929.93

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Double scale
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Similar ratio
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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.