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Finding the Fourth Proportional to 981,570.26, 1,472,373.84 and 307,636.64

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Solution

The fourth proportional to 981,570.26, 1,472,373.84 and 307,636.64 is: 461,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,570.26 : 1,472,373.84 = 307,636.64 : x
  2. Step 2: Convert to fraction form
    981,570.26/1,472,373.84 = 307,636.64/x
  3. Step 3: Cross multiply
    981,570.26x = 1,472,373.84 × 307,636.64
  4. Step 4: Simplify right side
    981,570.26x = 452,956,140,961.50
  5. Step 5: Solve for x
    x = 452,956,140,961.50/981,570.26
  6. Step 6: Final answer
    x = 461,460.74

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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.