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Finding the Fourth Proportional to 1,093,724.60, 1,640,586.90 and 671,631.80

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Solution

The fourth proportional to 1,093,724.60, 1,640,586.90 and 671,631.80 is: 1,007,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,724.60 : 1,640,586.90 = 671,631.80 : x
  2. Step 2: Convert to fraction form
    1,093,724.60/1,640,586.90 = 671,631.80/x
  3. Step 3: Cross multiply
    1,093,724.60x = 1,640,586.90 × 671,631.80
  4. Step 4: Simplify right side
    1,093,724.60x = 1,101,870,332,703.42
  5. Step 5: Solve for x
    x = 1,101,870,332,703.42/1,093,724.60
  6. Step 6: Final answer
    x = 1,007,447.70

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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.