Home / 1,295,570.28-1,787,889.41-722,647.36

Finding the Fourth Proportional to 1,295,570.28, 1,787,889.41 and 722,647.36

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Solution

The fourth proportional to 1,295,570.28, 1,787,889.41 and 722,647.36 is: 997,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,570.28 : 1,787,889.41 = 722,647.36 : x
  2. Step 2: Convert to fraction form
    1,295,570.28/1,787,889.41 = 722,647.36/x
  3. Step 3: Cross multiply
    1,295,570.28x = 1,787,889.41 × 722,647.36
  4. Step 4: Simplify right side
    1,295,570.28x = 1,292,013,562,108.46
  5. Step 5: Solve for x
    x = 1,292,013,562,108.46/1,295,570.28
  6. Step 6: Final answer
    x = 997,254.71

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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.