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Finding the Fourth Proportional to 750,144, 1,125,214.72 and 306,910.72

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Solution

The fourth proportional to 750,144, 1,125,214.72 and 306,910.72 is: 460,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,144 : 1,125,214.72 = 306,910.72 : x
  2. Step 2: Convert to fraction form
    750,144/1,125,214.72 = 306,910.72/x
  3. Step 3: Cross multiply
    750,144x = 1,125,214.72 × 306,910.72
  4. Step 4: Simplify right side
    750,144x = 345,340,459,869.80
  5. Step 5: Solve for x
    x = 345,340,459,869.80/750,144
  6. Step 6: Final answer
    x = 460,365.56

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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.