Home / 1,443,126.50-1,991,725.85-831,160.16

Finding the Fourth Proportional to 1,443,126.50, 1,991,725.85 and 831,160.16

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Solution

The fourth proportional to 1,443,126.50, 1,991,725.85 and 831,160.16 is: 1,147,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,126.50 : 1,991,725.85 = 831,160.16 : x
  2. Step 2: Convert to fraction form
    1,443,126.50/1,991,725.85 = 831,160.16/x
  3. Step 3: Cross multiply
    1,443,126.50x = 1,991,725.85 × 831,160.16
  4. Step 4: Simplify right side
    1,443,126.50x = 1,655,443,175,507.97
  5. Step 5: Solve for x
    x = 1,655,443,175,507.97/1,443,126.50
  6. Step 6: Final answer
    x = 1,147,122.70

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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.