Home / 1,536,565.32-2,120,660.78-857,642.76

Finding the Fourth Proportional to 1,536,565.32, 2,120,660.78 and 857,642.76

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Solution

The fourth proportional to 1,536,565.32, 2,120,660.78 and 857,642.76 is: 1,183,659.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,565.32 : 2,120,660.78 = 857,642.76 : x
  2. Step 2: Convert to fraction form
    1,536,565.32/2,120,660.78 = 857,642.76/x
  3. Step 3: Cross multiply
    1,536,565.32x = 2,120,660.78 × 857,642.76
  4. Step 4: Simplify right side
    1,536,565.32x = 1,818,769,364,382.95
  5. Step 5: Solve for x
    x = 1,818,769,364,382.95/1,536,565.32
  6. Step 6: Final answer
    x = 1,183,659.00

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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.