Home / 1,126,991.43-1,690,585.56-285,543.18

Finding the Fourth Proportional to 1,126,991.43, 1,690,585.56 and 285,543.18

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Solution

The fourth proportional to 1,126,991.43, 1,690,585.56 and 285,543.18 is: 428,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,991.43 : 1,690,585.56 = 285,543.18 : x
  2. Step 2: Convert to fraction form
    1,126,991.43/1,690,585.56 = 285,543.18/x
  3. Step 3: Cross multiply
    1,126,991.43x = 1,690,585.56 × 285,543.18
  4. Step 4: Simplify right side
    1,126,991.43x = 482,735,176,864.48
  5. Step 5: Solve for x
    x = 482,735,176,864.48/1,126,991.43
  6. Step 6: Final answer
    x = 428,339.71

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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.