Home / 711,830.68-1,067,902.87-206,412.76

Finding the Fourth Proportional to 711,830.68, 1,067,902.87 and 206,412.76

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Solution

The fourth proportional to 711,830.68, 1,067,902.87 and 206,412.76 is: 309,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,830.68 : 1,067,902.87 = 206,412.76 : x
  2. Step 2: Convert to fraction form
    711,830.68/1,067,902.87 = 206,412.76/x
  3. Step 3: Cross multiply
    711,830.68x = 1,067,902.87 × 206,412.76
  4. Step 4: Simplify right side
    711,830.68x = 220,428,772,437.04
  5. Step 5: Solve for x
    x = 220,428,772,437.04/711,830.68
  6. Step 6: Final answer
    x = 309,664.62

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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.