Home / 711,821.90-1,067,421.81-213,069.26

Finding the Fourth Proportional to 711,821.90, 1,067,421.81 and 213,069.26

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Solution

The fourth proportional to 711,821.90, 1,067,421.81 and 213,069.26 is: 319,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,821.90 : 1,067,421.81 = 213,069.26 : x
  2. Step 2: Convert to fraction form
    711,821.90/1,067,421.81 = 213,069.26/x
  3. Step 3: Cross multiply
    711,821.90x = 1,067,421.81 × 213,069.26
  4. Step 4: Simplify right side
    711,821.90x = 227,434,775,164.56
  5. Step 5: Solve for x
    x = 227,434,775,164.56/711,821.90
  6. Step 6: Final answer
    x = 319,510.79

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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.