Home / 1,142,860.43-1,576,828.14-900,391.52

Finding the Fourth Proportional to 1,142,860.43, 1,576,828.14 and 900,391.52

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Solution

The fourth proportional to 1,142,860.43, 1,576,828.14 and 900,391.52 is: 1,242,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,860.43 : 1,576,828.14 = 900,391.52 : x
  2. Step 2: Convert to fraction form
    1,142,860.43/1,576,828.14 = 900,391.52/x
  3. Step 3: Cross multiply
    1,142,860.43x = 1,576,828.14 × 900,391.52
  4. Step 4: Simplify right side
    1,142,860.43x = 1,419,762,685,753.37
  5. Step 5: Solve for x
    x = 1,419,762,685,753.37/1,142,860.43
  6. Step 6: Final answer
    x = 1,242,288.78

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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.