Home / 1,295,712.54-1,788,121.17-722,740.32

Finding the Fourth Proportional to 1,295,712.54, 1,788,121.17 and 722,740.32

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Solution

The fourth proportional to 1,295,712.54, 1,788,121.17 and 722,740.32 is: 997,402.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,712.54 : 1,788,121.17 = 722,740.32 : x
  2. Step 2: Convert to fraction form
    1,295,712.54/1,788,121.17 = 722,740.32/x
  3. Step 3: Cross multiply
    1,295,712.54x = 1,788,121.17 × 722,740.32
  4. Step 4: Simplify right side
    1,295,712.54x = 1,292,347,266,604.57
  5. Step 5: Solve for x
    x = 1,292,347,266,604.57/1,295,712.54
  6. Step 6: Final answer
    x = 997,402.76

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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.