Home / 820,244.40-1,230,712.20-446,535.60

Finding the Fourth Proportional to 820,244.40, 1,230,712.20 and 446,535.60

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Solution

The fourth proportional to 820,244.40, 1,230,712.20 and 446,535.60 is: 669,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,244.40 : 1,230,712.20 = 446,535.60 : x
  2. Step 2: Convert to fraction form
    820,244.40/1,230,712.20 = 446,535.60/x
  3. Step 3: Cross multiply
    820,244.40x = 1,230,712.20 × 446,535.60
  4. Step 4: Simplify right side
    820,244.40x = 549,556,810,654.32
  5. Step 5: Solve for x
    x = 549,556,810,654.32/820,244.40
  6. Step 6: Final answer
    x = 669,991.54

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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.