Home / 664,480.20-916,663.86-482,910.60

Finding the Fourth Proportional to 664,480.20, 916,663.86 and 482,910.60

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Solution

The fourth proportional to 664,480.20, 916,663.86 and 482,910.60 is: 666,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,480.20 : 916,663.86 = 482,910.60 : x
  2. Step 2: Convert to fraction form
    664,480.20/916,663.86 = 482,910.60/x
  3. Step 3: Cross multiply
    664,480.20x = 916,663.86 × 482,910.60
  4. Step 4: Simplify right side
    664,480.20x = 442,666,694,630.92
  5. Step 5: Solve for x
    x = 442,666,694,630.92/664,480.20
  6. Step 6: Final answer
    x = 666,184.93

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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.