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Finding the Fourth Proportional to 476,515.49, 657,612.84 and 285,524.78

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Solution

The fourth proportional to 476,515.49, 657,612.84 and 285,524.78 is: 394,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,515.49 : 657,612.84 = 285,524.78 : x
  2. Step 2: Convert to fraction form
    476,515.49/657,612.84 = 285,524.78/x
  3. Step 3: Cross multiply
    476,515.49x = 657,612.84 × 285,524.78
  4. Step 4: Simplify right side
    476,515.49x = 187,764,761,466.18
  5. Step 5: Solve for x
    x = 187,764,761,466.18/476,515.49
  6. Step 6: Final answer
    x = 394,037.06

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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.