Home / 830,510.60-1,245,766.30-231,487.25

Finding the Fourth Proportional to 830,510.60, 1,245,766.30 and 231,487.25

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Solution

The fourth proportional to 830,510.60, 1,245,766.30 and 231,487.25 is: 347,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510.60 : 1,245,766.30 = 231,487.25 : x
  2. Step 2: Convert to fraction form
    830,510.60/1,245,766.30 = 231,487.25/x
  3. Step 3: Cross multiply
    830,510.60x = 1,245,766.30 × 231,487.25
  4. Step 4: Simplify right side
    830,510.60x = 288,379,008,122.13
  5. Step 5: Solve for x
    x = 288,379,008,122.13/830,510.60
  6. Step 6: Final answer
    x = 347,230.98

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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.