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Finding the Fourth Proportional to 328,005.60, 492,006.39 and 84,846.66

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Solution

The fourth proportional to 328,005.60, 492,006.39 and 84,846.66 is: 127,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,005.60 : 492,006.39 = 84,846.66 : x
  2. Step 2: Convert to fraction form
    328,005.60/492,006.39 = 84,846.66/x
  3. Step 3: Cross multiply
    328,005.60x = 492,006.39 × 84,846.66
  4. Step 4: Simplify right side
    328,005.60x = 41,745,098,890.16
  5. Step 5: Solve for x
    x = 41,745,098,890.16/328,005.60
  6. Step 6: Final answer
    x = 127,269.47

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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.