Home / 823,902.60-1,235,162.70-429,918.60

Finding the Fourth Proportional to 823,902.60, 1,235,162.70 and 429,918.60

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Solution

The fourth proportional to 823,902.60, 1,235,162.70 and 429,918.60 is: 644,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,902.60 : 1,235,162.70 = 429,918.60 : x
  2. Step 2: Convert to fraction form
    823,902.60/1,235,162.70 = 429,918.60/x
  3. Step 3: Cross multiply
    823,902.60x = 1,235,162.70 × 429,918.60
  4. Step 4: Simplify right side
    823,902.60x = 531,019,418,756.22
  5. Step 5: Solve for x
    x = 531,019,418,756.22/823,902.60
  6. Step 6: Final answer
    x = 644,517.23

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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.