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Finding the Fourth Proportional to 665,257.90, 997,926.94 and 451,935.48

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Solution

The fourth proportional to 665,257.90, 997,926.94 and 451,935.48 is: 677,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,257.90 : 997,926.94 = 451,935.48 : x
  2. Step 2: Convert to fraction form
    665,257.90/997,926.94 = 451,935.48/x
  3. Step 3: Cross multiply
    665,257.90x = 997,926.94 × 451,935.48
  4. Step 4: Simplify right side
    665,257.90x = 450,998,590,633.83
  5. Step 5: Solve for x
    x = 450,998,590,633.83/665,257.90
  6. Step 6: Final answer
    x = 677,930.45

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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.