Home / 1,315,519.76-1,815,422.92-711,907.76

Finding the Fourth Proportional to 1,315,519.76, 1,815,422.92 and 711,907.76

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Solution

The fourth proportional to 1,315,519.76, 1,815,422.92 and 711,907.76 is: 982,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,519.76 : 1,815,422.92 = 711,907.76 : x
  2. Step 2: Convert to fraction form
    1,315,519.76/1,815,422.92 = 711,907.76/x
  3. Step 3: Cross multiply
    1,315,519.76x = 1,815,422.92 × 711,907.76
  4. Step 4: Simplify right side
    1,315,519.76x = 1,292,413,664,429.86
  5. Step 5: Solve for x
    x = 1,292,413,664,429.86/1,315,519.76
  6. Step 6: Final answer
    x = 982,435.77

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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.