Home / 762,473.79-1,143,378.41-256,940.55

Finding the Fourth Proportional to 762,473.79, 1,143,378.41 and 256,940.55

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Solution

The fourth proportional to 762,473.79, 1,143,378.41 and 256,940.55 is: 385,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,473.79 : 1,143,378.41 = 256,940.55 : x
  2. Step 2: Convert to fraction form
    762,473.79/1,143,378.41 = 256,940.55/x
  3. Step 3: Cross multiply
    762,473.79x = 1,143,378.41 × 256,940.55
  4. Step 4: Simplify right side
    762,473.79x = 293,780,276,238.82
  5. Step 5: Solve for x
    x = 293,780,276,238.82/762,473.79
  6. Step 6: Final answer
    x = 385,298.85

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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.