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Finding the Fourth Proportional to 415,453.28, 573,798.44 and 279,250.76

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Solution

The fourth proportional to 415,453.28, 573,798.44 and 279,250.76 is: 385,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,453.28 : 573,798.44 = 279,250.76 : x
  2. Step 2: Convert to fraction form
    415,453.28/573,798.44 = 279,250.76/x
  3. Step 3: Cross multiply
    415,453.28x = 573,798.44 × 279,250.76
  4. Step 4: Simplify right side
    415,453.28x = 160,233,646,191.57
  5. Step 5: Solve for x
    x = 160,233,646,191.57/415,453.28
  6. Step 6: Final answer
    x = 385,683.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.