Home / 3,119,489.80-4,679,234.70-2,830,222.60

Finding the Fourth Proportional to 3,119,489.80, 4,679,234.70 and 2,830,222.60

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Solution

The fourth proportional to 3,119,489.80, 4,679,234.70 and 2,830,222.60 is: 4,245,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,489.80 : 4,679,234.70 = 2,830,222.60 : x
  2. Step 2: Convert to fraction form
    3,119,489.80/4,679,234.70 = 2,830,222.60/x
  3. Step 3: Cross multiply
    3,119,489.80x = 4,679,234.70 × 2,830,222.60
  4. Step 4: Simplify right side
    3,119,489.80x = 13,243,275,798,644.22
  5. Step 5: Solve for x
    x = 13,243,275,798,644.22/3,119,489.80
  6. Step 6: Final answer
    x = 4,245,333.90

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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.