Home / 711,411.69-1,067,119.35-290,687.56

Finding the Fourth Proportional to 711,411.69, 1,067,119.35 and 290,687.56

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Solution

The fourth proportional to 711,411.69, 1,067,119.35 and 290,687.56 is: 436,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,411.69 : 1,067,119.35 = 290,687.56 : x
  2. Step 2: Convert to fraction form
    711,411.69/1,067,119.35 = 290,687.56/x
  3. Step 3: Cross multiply
    711,411.69x = 1,067,119.35 × 290,687.56
  4. Step 4: Simplify right side
    711,411.69x = 310,198,321,959.22
  5. Step 5: Solve for x
    x = 310,198,321,959.22/711,411.69
  6. Step 6: Final answer
    x = 436,032.09

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Double scale
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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.