Home / 1,425,629.70-1,967,371.47-781,036.02

Finding the Fourth Proportional to 1,425,629.70, 1,967,371.47 and 781,036.02

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Solution

The fourth proportional to 1,425,629.70, 1,967,371.47 and 781,036.02 is: 1,077,831.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,629.70 : 1,967,371.47 = 781,036.02 : x
  2. Step 2: Convert to fraction form
    1,425,629.70/1,967,371.47 = 781,036.02/x
  3. Step 3: Cross multiply
    1,425,629.70x = 1,967,371.47 × 781,036.02
  4. Step 4: Simplify right side
    1,425,629.70x = 1,536,587,982,790.35
  5. Step 5: Solve for x
    x = 1,536,587,982,790.35/1,425,629.70
  6. Step 6: Final answer
    x = 1,077,831.07

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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.