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Finding the Fourth Proportional to 775,952.72, 1,070,804.44 and 436,420.97

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Solution

The fourth proportional to 775,952.72, 1,070,804.44 and 436,420.97 is: 602,255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,952.72 : 1,070,804.44 = 436,420.97 : x
  2. Step 2: Convert to fraction form
    775,952.72/1,070,804.44 = 436,420.97/x
  3. Step 3: Cross multiply
    775,952.72x = 1,070,804.44 × 436,420.97
  4. Step 4: Simplify right side
    775,952.72x = 467,321,512,385.11
  5. Step 5: Solve for x
    x = 467,321,512,385.11/775,952.72
  6. Step 6: Final answer
    x = 602,255.14

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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.