Home / 1,221,247.16-1,685,522.92-677,558.06

Finding the Fourth Proportional to 1,221,247.16, 1,685,522.92 and 677,558.06

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Solution

The fourth proportional to 1,221,247.16, 1,685,522.92 and 677,558.06 is: 935,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,247.16 : 1,685,522.92 = 677,558.06 : x
  2. Step 2: Convert to fraction form
    1,221,247.16/1,685,522.92 = 677,558.06/x
  3. Step 3: Cross multiply
    1,221,247.16x = 1,685,522.92 × 677,558.06
  4. Step 4: Simplify right side
    1,221,247.16x = 1,142,039,639,760.74
  5. Step 5: Solve for x
    x = 1,142,039,639,760.74/1,221,247.16
  6. Step 6: Final answer
    x = 935,142.10

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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.