Home / 711,979.88-1,068,144.77-213,343.88

Finding the Fourth Proportional to 711,979.88, 1,068,144.77 and 213,343.88

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Solution

The fourth proportional to 711,979.88, 1,068,144.77 and 213,343.88 is: 320,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,979.88 : 1,068,144.77 = 213,343.88 : x
  2. Step 2: Convert to fraction form
    711,979.88/1,068,144.77 = 213,343.88/x
  3. Step 3: Cross multiply
    711,979.88x = 1,068,144.77 × 213,343.88
  4. Step 4: Simplify right side
    711,979.88x = 227,882,144,826.14
  5. Step 5: Solve for x
    x = 227,882,144,826.14/711,979.88
  6. Step 6: Final answer
    x = 320,068.24

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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.