Home / 786,529.80-1,179,794.70-313,554.60

Finding the Fourth Proportional to 786,529.80, 1,179,794.70 and 313,554.60

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Solution

The fourth proportional to 786,529.80, 1,179,794.70 and 313,554.60 is: 470,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,529.80 : 1,179,794.70 = 313,554.60 : x
  2. Step 2: Convert to fraction form
    786,529.80/1,179,794.70 = 313,554.60/x
  3. Step 3: Cross multiply
    786,529.80x = 1,179,794.70 × 313,554.60
  4. Step 4: Simplify right side
    786,529.80x = 369,930,055,240.62
  5. Step 5: Solve for x
    x = 369,930,055,240.62/786,529.80
  6. Step 6: Final answer
    x = 470,331.90

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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.