Home / 1,428,386.50-2,143,119.21-754,440.58

Finding the Fourth Proportional to 1,428,386.50, 2,143,119.21 and 754,440.58

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Solution

The fourth proportional to 1,428,386.50, 2,143,119.21 and 754,440.58 is: 1,131,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,386.50 : 2,143,119.21 = 754,440.58 : x
  2. Step 2: Convert to fraction form
    1,428,386.50/2,143,119.21 = 754,440.58/x
  3. Step 3: Cross multiply
    1,428,386.50x = 2,143,119.21 × 754,440.58
  4. Step 4: Simplify right side
    1,428,386.50x = 1,616,856,099,801.54
  5. Step 5: Solve for x
    x = 1,616,856,099,801.54/1,428,386.50
  6. Step 6: Final answer
    x = 1,131,945.80

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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.