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Finding the Third Proportional to 420,349.50 and 870,601.50

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Solution

The third proportional to 420,349.50 and 870,601.50 is: 1,803,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,349.50 : 870,601.50 = 870,601.50 : x
  2. Step 2: Convert to fraction form
    420,349.50/870,601.50 = 870,601.50/x
  3. Step 3: Cross multiply
    420,349.50x = 870,601.50 × 870,601.50
  4. Step 4: Simplify right side
    420,349.50x = 757,946,971,802.25
  5. Step 5: Solve for x
    x = 757,946,971,802.25/420,349.50
  6. Step 6: Final answer
    x = 1,803,135.18

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.