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Finding the Fourth Proportional to 981,256.80, 1,471,690.80 and 475,816.80

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Solution

The fourth proportional to 981,256.80, 1,471,690.80 and 475,816.80 is: 713,630.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,256.80 : 1,471,690.80 = 475,816.80 : x
  2. Step 2: Convert to fraction form
    981,256.80/1,471,690.80 = 475,816.80/x
  3. Step 3: Cross multiply
    981,256.80x = 1,471,690.80 × 475,816.80
  4. Step 4: Simplify right side
    981,256.80x = 700,255,207,045.44
  5. Step 5: Solve for x
    x = 700,255,207,045.44/981,256.80
  6. Step 6: Final answer
    x = 713,630.93

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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.