Home / 1,616,741.45-2,231,073.74-891,656.18

Finding the Fourth Proportional to 1,616,741.45, 2,231,073.74 and 891,656.18

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Solution

The fourth proportional to 1,616,741.45, 2,231,073.74 and 891,656.18 is: 1,230,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,741.45 : 2,231,073.74 = 891,656.18 : x
  2. Step 2: Convert to fraction form
    1,616,741.45/2,231,073.74 = 891,656.18/x
  3. Step 3: Cross multiply
    1,616,741.45x = 2,231,073.74 × 891,656.18
  4. Step 4: Simplify right side
    1,616,741.45x = 1,989,350,679,380.49
  5. Step 5: Solve for x
    x = 1,989,350,679,380.49/1,616,741.45
  6. Step 6: Final answer
    x = 1,230,469.28

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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.