Home / 730,517.80-1,008,136.09-408,228.67

Finding the Fourth Proportional to 730,517.80, 1,008,136.09 and 408,228.67

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Solution

The fourth proportional to 730,517.80, 1,008,136.09 and 408,228.67 is: 563,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,517.80 : 1,008,136.09 = 408,228.67 : x
  2. Step 2: Convert to fraction form
    730,517.80/1,008,136.09 = 408,228.67/x
  3. Step 3: Cross multiply
    730,517.80x = 1,008,136.09 × 408,228.67
  4. Step 4: Simplify right side
    730,517.80x = 411,550,052,869.34
  5. Step 5: Solve for x
    x = 411,550,052,869.34/730,517.80
  6. Step 6: Final answer
    x = 563,367.59

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.