Home / 790,764.80-1,186,147.20-347,532.80

Finding the Fourth Proportional to 790,764.80, 1,186,147.20 and 347,532.80

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Solution

The fourth proportional to 790,764.80, 1,186,147.20 and 347,532.80 is: 521,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,764.80 : 1,186,147.20 = 347,532.80 : x
  2. Step 2: Convert to fraction form
    790,764.80/1,186,147.20 = 347,532.80/x
  3. Step 3: Cross multiply
    790,764.80x = 1,186,147.20 × 347,532.80
  4. Step 4: Simplify right side
    790,764.80x = 412,225,057,628.16
  5. Step 5: Solve for x
    x = 412,225,057,628.16/790,764.80
  6. Step 6: Final answer
    x = 521,299.20

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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.