Home / 762,512.94-1,142,971.29-256,899.21

Finding the Fourth Proportional to 762,512.94, 1,142,971.29 and 256,899.21

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Solution

The fourth proportional to 762,512.94, 1,142,971.29 and 256,899.21 is: 385,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,512.94 : 1,142,971.29 = 256,899.21 : x
  2. Step 2: Convert to fraction form
    762,512.94/1,142,971.29 = 256,899.21/x
  3. Step 3: Cross multiply
    762,512.94x = 1,142,971.29 × 256,899.21
  4. Step 4: Simplify right side
    762,512.94x = 293,628,421,453.68
  5. Step 5: Solve for x
    x = 293,628,421,453.68/762,512.94
  6. Step 6: Final answer
    x = 385,079.92

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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.