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Finding the Fourth Proportional to 884,338.80, 1,325,147.40 and 658,640.40

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Solution

The fourth proportional to 884,338.80, 1,325,147.40 and 658,640.40 is: 986,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,338.80 : 1,325,147.40 = 658,640.40 : x
  2. Step 2: Convert to fraction form
    884,338.80/1,325,147.40 = 658,640.40/x
  3. Step 3: Cross multiply
    884,338.80x = 1,325,147.40 × 658,640.40
  4. Step 4: Simplify right side
    884,338.80x = 872,795,613,594.96
  5. Step 5: Solve for x
    x = 872,795,613,594.96/884,338.80
  6. Step 6: Final answer
    x = 986,947.10

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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.