Home / 792,136.80-1,188,205.20-477,208.80

Finding the Fourth Proportional to 792,136.80, 1,188,205.20 and 477,208.80

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Solution

The fourth proportional to 792,136.80, 1,188,205.20 and 477,208.80 is: 715,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,136.80 : 1,188,205.20 = 477,208.80 : x
  2. Step 2: Convert to fraction form
    792,136.80/1,188,205.20 = 477,208.80/x
  3. Step 3: Cross multiply
    792,136.80x = 1,188,205.20 × 477,208.80
  4. Step 4: Simplify right side
    792,136.80x = 567,021,977,645.76
  5. Step 5: Solve for x
    x = 567,021,977,645.76/792,136.80
  6. Step 6: Final answer
    x = 715,813.20

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Half scale
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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.