Home / 1,639,275.80-2,458,913.70-930,687.80

Finding the Fourth Proportional to 1,639,275.80, 2,458,913.70 and 930,687.80

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Solution

The fourth proportional to 1,639,275.80, 2,458,913.70 and 930,687.80 is: 1,396,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,275.80 : 2,458,913.70 = 930,687.80 : x
  2. Step 2: Convert to fraction form
    1,639,275.80/2,458,913.70 = 930,687.80/x
  3. Step 3: Cross multiply
    1,639,275.80x = 2,458,913.70 × 930,687.80
  4. Step 4: Simplify right side
    1,639,275.80x = 2,288,480,981,842.86
  5. Step 5: Solve for x
    x = 2,288,480,981,842.86/1,639,275.80
  6. Step 6: Final answer
    x = 1,396,031.70

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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.