Home / 1,221,330.26-1,685,462.78-677,448.34

Finding the Fourth Proportional to 1,221,330.26, 1,685,462.78 and 677,448.34

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Solution

The fourth proportional to 1,221,330.26, 1,685,462.78 and 677,448.34 is: 934,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,330.26 : 1,685,462.78 = 677,448.34 : x
  2. Step 2: Convert to fraction form
    1,221,330.26/1,685,462.78 = 677,448.34/x
  3. Step 3: Cross multiply
    1,221,330.26x = 1,685,462.78 × 677,448.34
  4. Step 4: Simplify right side
    1,221,330.26x = 1,141,813,962,442.79
  5. Step 5: Solve for x
    x = 1,141,813,962,442.79/1,221,330.26
  6. Step 6: Final answer
    x = 934,893.70

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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.