Home / 491,220.15-677,835.54-276,355.62

Finding the Fourth Proportional to 491,220.15, 677,835.54 and 276,355.62

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Solution

The fourth proportional to 491,220.15, 677,835.54 and 276,355.62 is: 381,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,220.15 : 677,835.54 = 276,355.62 : x
  2. Step 2: Convert to fraction form
    491,220.15/677,835.54 = 276,355.62/x
  3. Step 3: Cross multiply
    491,220.15x = 677,835.54 × 276,355.62
  4. Step 4: Simplify right side
    491,220.15x = 187,323,660,914.74
  5. Step 5: Solve for x
    x = 187,323,660,914.74/491,220.15
  6. Step 6: Final answer
    x = 381,343.60

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1.5x scale

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.