Home / 1,689,640.21-2,534,791.10-743,008.20

Finding the Fourth Proportional to 1,689,640.21, 2,534,791.10 and 743,008.20

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Solution

The fourth proportional to 1,689,640.21, 2,534,791.10 and 743,008.20 is: 1,114,657.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,640.21 : 2,534,791.10 = 743,008.20 : x
  2. Step 2: Convert to fraction form
    1,689,640.21/2,534,791.10 = 743,008.20/x
  3. Step 3: Cross multiply
    1,689,640.21x = 2,534,791.10 × 743,008.20
  4. Step 4: Simplify right side
    1,689,640.21x = 1,883,370,572,587.02
  5. Step 5: Solve for x
    x = 1,883,370,572,587.02/1,689,640.21
  6. Step 6: Final answer
    x = 1,114,657.76

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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.