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Finding the Fourth Proportional to 653,911.60, 981,029.40 and 298,850.80

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Solution

The fourth proportional to 653,911.60, 981,029.40 and 298,850.80 is: 448,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,911.60 : 981,029.40 = 298,850.80 : x
  2. Step 2: Convert to fraction form
    653,911.60/981,029.40 = 298,850.80/x
  3. Step 3: Cross multiply
    653,911.60x = 981,029.40 × 298,850.80
  4. Step 4: Simplify right side
    653,911.60x = 293,181,421,013.52
  5. Step 5: Solve for x
    x = 293,181,421,013.52/653,911.60
  6. Step 6: Final answer
    x = 448,350.24

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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.