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Finding the Fourth Proportional to 724,869.60, 1,085,230.80 and 724,869.60

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Solution

The fourth proportional to 724,869.60, 1,085,230.80 and 724,869.60 is: 1,085,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,869.60 : 1,085,230.80 = 724,869.60 : x
  2. Step 2: Convert to fraction form
    724,869.60/1,085,230.80 = 724,869.60/x
  3. Step 3: Cross multiply
    724,869.60x = 1,085,230.80 × 724,869.60
  4. Step 4: Simplify right side
    724,869.60x = 786,650,815,903.68
  5. Step 5: Solve for x
    x = 786,650,815,903.68/724,869.60
  6. Step 6: Final answer
    x = 1,085,230.80

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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.