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Finding the Fourth Proportional to 471,357.69, 650,487.30 and 256,511.61

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Solution

The fourth proportional to 471,357.69, 650,487.30 and 256,511.61 is: 353,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,357.69 : 650,487.30 = 256,511.61 : x
  2. Step 2: Convert to fraction form
    471,357.69/650,487.30 = 256,511.61/x
  3. Step 3: Cross multiply
    471,357.69x = 650,487.30 × 256,511.61
  4. Step 4: Simplify right side
    471,357.69x = 166,857,544,607.55
  5. Step 5: Solve for x
    x = 166,857,544,607.55/471,357.69
  6. Step 6: Final answer
    x = 353,993.47

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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.