Home / 1,383,954.71-1,909,904.81-803,133.09

Finding the Fourth Proportional to 1,383,954.71, 1,909,904.81 and 803,133.09

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Solution

The fourth proportional to 1,383,954.71, 1,909,904.81 and 803,133.09 is: 1,108,351.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,954.71 : 1,909,904.81 = 803,133.09 : x
  2. Step 2: Convert to fraction form
    1,383,954.71/1,909,904.81 = 803,133.09/x
  3. Step 3: Cross multiply
    1,383,954.71x = 1,909,904.81 × 803,133.09
  4. Step 4: Simplify right side
    1,383,954.71x = 1,533,907,747,645.50
  5. Step 5: Solve for x
    x = 1,533,907,747,645.50/1,383,954.71
  6. Step 6: Final answer
    x = 1,108,351.12

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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.