Home / 1,221,567.28-1,685,773.01-677,738.75

Finding the Fourth Proportional to 1,221,567.28, 1,685,773.01 and 677,738.75

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Solution

The fourth proportional to 1,221,567.28, 1,685,773.01 and 677,738.75 is: 935,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,567.28 : 1,685,773.01 = 677,738.75 : x
  2. Step 2: Convert to fraction form
    1,221,567.28/1,685,773.01 = 677,738.75/x
  3. Step 3: Cross multiply
    1,221,567.28x = 1,685,773.01 × 677,738.75
  4. Step 4: Simplify right side
    1,221,567.28x = 1,142,513,685,846.62
  5. Step 5: Solve for x
    x = 1,142,513,685,846.62/1,221,567.28
  6. Step 6: Final answer
    x = 935,285.11

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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.