Home / 711,998.82-982,556.72-389,706.10

Finding the Fourth Proportional to 711,998.82, 982,556.72 and 389,706.10

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Solution

The fourth proportional to 711,998.82, 982,556.72 and 389,706.10 is: 537,793.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,998.82 : 982,556.72 = 389,706.10 : x
  2. Step 2: Convert to fraction form
    711,998.82/982,556.72 = 389,706.10/x
  3. Step 3: Cross multiply
    711,998.82x = 982,556.72 × 389,706.10
  4. Step 4: Simplify right side
    711,998.82x = 382,908,347,379.99
  5. Step 5: Solve for x
    x = 382,908,347,379.99/711,998.82
  6. Step 6: Final answer
    x = 537,793.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.