Home / 711,990.77-1,067,850.07-213,354.77

Finding the Fourth Proportional to 711,990.77, 1,067,850.07 and 213,354.77

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Solution

The fourth proportional to 711,990.77, 1,067,850.07 and 213,354.77 is: 319,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,990.77 : 1,067,850.07 = 213,354.77 : x
  2. Step 2: Convert to fraction form
    711,990.77/1,067,850.07 = 213,354.77/x
  3. Step 3: Cross multiply
    711,990.77x = 1,067,850.07 × 213,354.77
  4. Step 4: Simplify right side
    711,990.77x = 227,830,900,206.70
  5. Step 5: Solve for x
    x = 227,830,900,206.70/711,990.77
  6. Step 6: Final answer
    x = 319,991.37

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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.