Home / 820,180.30-1,230,270.45-731,606.80

Finding the Fourth Proportional to 820,180.30, 1,230,270.45 and 731,606.80

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Solution

The fourth proportional to 820,180.30, 1,230,270.45 and 731,606.80 is: 1,097,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,180.30 : 1,230,270.45 = 731,606.80 : x
  2. Step 2: Convert to fraction form
    820,180.30/1,230,270.45 = 731,606.80/x
  3. Step 3: Cross multiply
    820,180.30x = 1,230,270.45 × 731,606.80
  4. Step 4: Simplify right side
    820,180.30x = 900,074,227,059.06
  5. Step 5: Solve for x
    x = 900,074,227,059.06/820,180.30
  6. Step 6: Final answer
    x = 1,097,410.20

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Double scale
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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.