Home / 792,662.80-1,188,994.20-438,368.80

Finding the Fourth Proportional to 792,662.80, 1,188,994.20 and 438,368.80

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Solution

The fourth proportional to 792,662.80, 1,188,994.20 and 438,368.80 is: 657,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,662.80 : 1,188,994.20 = 438,368.80 : x
  2. Step 2: Convert to fraction form
    792,662.80/1,188,994.20 = 438,368.80/x
  3. Step 3: Cross multiply
    792,662.80x = 1,188,994.20 × 438,368.80
  4. Step 4: Simplify right side
    792,662.80x = 521,217,960,660.96
  5. Step 5: Solve for x
    x = 521,217,960,660.96/792,662.80
  6. Step 6: Final answer
    x = 657,553.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.