Home / 1,187,001.36-1,638,142.25-670,576.14

Finding the Fourth Proportional to 1,187,001.36, 1,638,142.25 and 670,576.14

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Solution

The fourth proportional to 1,187,001.36, 1,638,142.25 and 670,576.14 is: 925,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,001.36 : 1,638,142.25 = 670,576.14 : x
  2. Step 2: Convert to fraction form
    1,187,001.36/1,638,142.25 = 670,576.14/x
  3. Step 3: Cross multiply
    1,187,001.36x = 1,638,142.25 × 670,576.14
  4. Step 4: Simplify right side
    1,187,001.36x = 1,098,499,103,423.03
  5. Step 5: Solve for x
    x = 1,098,499,103,423.03/1,187,001.36
  6. Step 6: Final answer
    x = 925,440.48

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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.