Home / 1,221,054.92-1,685,060.74-677,241.48

Finding the Fourth Proportional to 1,221,054.92, 1,685,060.74 and 677,241.48

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Solution

The fourth proportional to 1,221,054.92, 1,685,060.74 and 677,241.48 is: 934,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,054.92 : 1,685,060.74 = 677,241.48 : x
  2. Step 2: Convert to fraction form
    1,221,054.92/1,685,060.74 = 677,241.48/x
  3. Step 3: Cross multiply
    1,221,054.92x = 1,685,060.74 × 677,241.48
  4. Step 4: Simplify right side
    1,221,054.92x = 1,141,193,029,447.50
  5. Step 5: Solve for x
    x = 1,141,193,029,447.50/1,221,054.92
  6. Step 6: Final answer
    x = 934,595.99

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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.