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Finding the Fourth Proportional to 809,740, 1,117,441.28 and 452,044

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Solution

The fourth proportional to 809,740, 1,117,441.28 and 452,044 is: 623,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,740 : 1,117,441.28 = 452,044 : x
  2. Step 2: Convert to fraction form
    809,740/1,117,441.28 = 452,044/x
  3. Step 3: Cross multiply
    809,740x = 1,117,441.28 × 452,044
  4. Step 4: Simplify right side
    809,740x = 505,132,625,976.32
  5. Step 5: Solve for x
    x = 505,132,625,976.32/809,740
  6. Step 6: Final answer
    x = 623,820.76

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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.