Home / 1,643,039.32-2,462,355.92-1,278,740.79

Finding the Fourth Proportional to 1,643,039.32, 2,462,355.92 and 1,278,740.79

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Solution

The fourth proportional to 1,643,039.32, 2,462,355.92 and 1,278,740.79 is: 1,916,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,039.32 : 2,462,355.92 = 1,278,740.79 : x
  2. Step 2: Convert to fraction form
    1,643,039.32/2,462,355.92 = 1,278,740.79/x
  3. Step 3: Cross multiply
    1,643,039.32x = 2,462,355.92 × 1,278,740.79
  4. Step 4: Simplify right side
    1,643,039.32x = 3,148,714,939,717.92
  5. Step 5: Solve for x
    x = 3,148,714,939,717.92/1,643,039.32
  6. Step 6: Final answer
    x = 1,916,396.59

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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.