Home / 711,980.51-1,067,834.69-213,344.51

Finding the Fourth Proportional to 711,980.51, 1,067,834.69 and 213,344.51

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Solution

The fourth proportional to 711,980.51, 1,067,834.69 and 213,344.51 is: 319,975.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,980.51 : 1,067,834.69 = 213,344.51 : x
  2. Step 2: Convert to fraction form
    711,980.51/1,067,834.69 = 213,344.51/x
  3. Step 3: Cross multiply
    711,980.51x = 1,067,834.69 × 213,344.51
  4. Step 4: Simplify right side
    711,980.51x = 227,816,670,001.38
  5. Step 5: Solve for x
    x = 227,816,670,001.38/711,980.51
  6. Step 6: Final answer
    x = 319,975.99

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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.