Home / 823,890.60-1,235,144.70-429,906.60

Finding the Fourth Proportional to 823,890.60, 1,235,144.70 and 429,906.60

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Solution

The fourth proportional to 823,890.60, 1,235,144.70 and 429,906.60 is: 644,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,890.60 : 1,235,144.70 = 429,906.60 : x
  2. Step 2: Convert to fraction form
    823,890.60/1,235,144.70 = 429,906.60/x
  3. Step 3: Cross multiply
    823,890.60x = 1,235,144.70 × 429,906.60
  4. Step 4: Simplify right side
    823,890.60x = 530,996,858,485.02
  5. Step 5: Solve for x
    x = 530,996,858,485.02/823,890.60
  6. Step 6: Final answer
    x = 644,499.23

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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.