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Finding the Fourth Proportional to 513,185.73, 708,175.35 and 283,728.39

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Solution

The fourth proportional to 513,185.73, 708,175.35 and 283,728.39 is: 391,533.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,185.73 : 708,175.35 = 283,728.39 : x
  2. Step 2: Convert to fraction form
    513,185.73/708,175.35 = 283,728.39/x
  3. Step 3: Cross multiply
    513,185.73x = 708,175.35 × 283,728.39
  4. Step 4: Simplify right side
    513,185.73x = 200,929,451,893.19
  5. Step 5: Solve for x
    x = 200,929,451,893.19/513,185.73
  6. Step 6: Final answer
    x = 391,533.59

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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.