Home / 1,418,761.72-2,128,083.04-660,342.32

Finding the Fourth Proportional to 1,418,761.72, 2,128,083.04 and 660,342.32

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Solution

The fourth proportional to 1,418,761.72, 2,128,083.04 and 660,342.32 is: 990,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,761.72 : 2,128,083.04 = 660,342.32 : x
  2. Step 2: Convert to fraction form
    1,418,761.72/2,128,083.04 = 660,342.32/x
  3. Step 3: Cross multiply
    1,418,761.72x = 2,128,083.04 × 660,342.32
  4. Step 4: Simplify right side
    1,418,761.72x = 1,405,263,281,145.84
  5. Step 5: Solve for x
    x = 1,405,263,281,145.84/1,418,761.72
  6. Step 6: Final answer
    x = 990,485.76

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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.