Home / 1,645,662.72-2,265,965.46-1,440,565.68

Finding the Fourth Proportional to 1,645,662.72, 2,265,965.46 and 1,440,565.68

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Solution

The fourth proportional to 1,645,662.72, 2,265,965.46 and 1,440,565.68 is: 1,983,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,662.72 : 2,265,965.46 = 1,440,565.68 : x
  2. Step 2: Convert to fraction form
    1,645,662.72/2,265,965.46 = 1,440,565.68/x
  3. Step 3: Cross multiply
    1,645,662.72x = 2,265,965.46 × 1,440,565.68
  4. Step 4: Simplify right side
    1,645,662.72x = 3,264,272,073,741.41
  5. Step 5: Solve for x
    x = 3,264,272,073,741.41/1,645,662.72
  6. Step 6: Final answer
    x = 1,983,560.81

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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.