Home / 1,214,229.80-1,821,344.70-372,672.20

Finding the Fourth Proportional to 1,214,229.80, 1,821,344.70 and 372,672.20

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Solution

The fourth proportional to 1,214,229.80, 1,821,344.70 and 372,672.20 is: 559,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,229.80 : 1,821,344.70 = 372,672.20 : x
  2. Step 2: Convert to fraction form
    1,214,229.80/1,821,344.70 = 372,672.20/x
  3. Step 3: Cross multiply
    1,214,229.80x = 1,821,344.70 × 372,672.20
  4. Step 4: Simplify right side
    1,214,229.80x = 678,764,536,307.34
  5. Step 5: Solve for x
    x = 678,764,536,307.34/1,214,229.80
  6. Step 6: Final answer
    x = 559,008.30

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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.