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Finding the Fourth Proportional to 750,469.73, 1,035,656.58 and 406,313.16

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Solution

The fourth proportional to 750,469.73, 1,035,656.58 and 406,313.16 is: 560,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,469.73 : 1,035,656.58 = 406,313.16 : x
  2. Step 2: Convert to fraction form
    750,469.73/1,035,656.58 = 406,313.16/x
  3. Step 3: Cross multiply
    750,469.73x = 1,035,656.58 × 406,313.16
  4. Step 4: Simplify right side
    750,469.73x = 420,800,901,160.12
  5. Step 5: Solve for x
    x = 420,800,901,160.12/750,469.73
  6. Step 6: Final answer
    x = 560,716.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.