Home / 1,221,588.32-1,685,994.22-677,898.75

Finding the Fourth Proportional to 1,221,588.32, 1,685,994.22 and 677,898.75

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Solution

The fourth proportional to 1,221,588.32, 1,685,994.22 and 677,898.75 is: 935,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,588.32 : 1,685,994.22 = 677,898.75 : x
  2. Step 2: Convert to fraction form
    1,221,588.32/1,685,994.22 = 677,898.75/x
  3. Step 3: Cross multiply
    1,221,588.32x = 1,685,994.22 × 677,898.75
  4. Step 4: Simplify right side
    1,221,588.32x = 1,142,933,364,120.51
  5. Step 5: Solve for x
    x = 1,142,933,364,120.51/1,221,588.32
  6. Step 6: Final answer
    x = 935,612.55

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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.