Home / 1,172,820.78-1,618,666.74-743,141.16

Finding the Fourth Proportional to 1,172,820.78, 1,618,666.74 and 743,141.16

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Solution

The fourth proportional to 1,172,820.78, 1,618,666.74 and 743,141.16 is: 1,025,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,820.78 : 1,618,666.74 = 743,141.16 : x
  2. Step 2: Convert to fraction form
    1,172,820.78/1,618,666.74 = 743,141.16/x
  3. Step 3: Cross multiply
    1,172,820.78x = 1,618,666.74 × 743,141.16
  4. Step 4: Simplify right side
    1,172,820.78x = 1,202,897,878,817.02
  5. Step 5: Solve for x
    x = 1,202,897,878,817.02/1,172,820.78
  6. Step 6: Final answer
    x = 1,025,645.09

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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.