Home / 1,170,400.50-1,615,284.18-661,135.68

Finding the Fourth Proportional to 1,170,400.50, 1,615,284.18 and 661,135.68

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Solution

The fourth proportional to 1,170,400.50, 1,615,284.18 and 661,135.68 is: 912,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,400.50 : 1,615,284.18 = 661,135.68 : x
  2. Step 2: Convert to fraction form
    1,170,400.50/1,615,284.18 = 661,135.68/x
  3. Step 3: Cross multiply
    1,170,400.50x = 1,615,284.18 × 661,135.68
  4. Step 4: Simplify right side
    1,170,400.50x = 1,067,922,004,737.54
  5. Step 5: Solve for x
    x = 1,067,922,004,737.54/1,170,400.50
  6. Step 6: Final answer
    x = 912,441.51

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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.