Home / 981,212.80-1,471,041.60-537,980.80

Finding the Fourth Proportional to 981,212.80, 1,471,041.60 and 537,980.80

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Solution

The fourth proportional to 981,212.80, 1,471,041.60 and 537,980.80 is: 806,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,212.80 : 1,471,041.60 = 537,980.80 : x
  2. Step 2: Convert to fraction form
    981,212.80/1,471,041.60 = 537,980.80/x
  3. Step 3: Cross multiply
    981,212.80x = 1,471,041.60 × 537,980.80
  4. Step 4: Simplify right side
    981,212.80x = 791,392,136,801.28
  5. Step 5: Solve for x
    x = 791,392,136,801.28/981,212.80
  6. Step 6: Final answer
    x = 806,544.86

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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.