Home / 1,415,976.40-2,120,465.40-940,085.20

Finding the Fourth Proportional to 1,415,976.40, 2,120,465.40 and 940,085.20

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Solution

The fourth proportional to 1,415,976.40, 2,120,465.40 and 940,085.20 is: 1,407,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,976.40 : 2,120,465.40 = 940,085.20 : x
  2. Step 2: Convert to fraction form
    1,415,976.40/2,120,465.40 = 940,085.20/x
  3. Step 3: Cross multiply
    1,415,976.40x = 2,120,465.40 × 940,085.20
  4. Step 4: Simplify right side
    1,415,976.40x = 1,993,418,139,652.08
  5. Step 5: Solve for x
    x = 1,993,418,139,652.08/1,415,976.40
  6. Step 6: Final answer
    x = 1,407,804.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.