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Finding the Fourth Proportional to 654,404.70, 981,477.45 and 317,444.70

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Solution

The fourth proportional to 654,404.70, 981,477.45 and 317,444.70 is: 476,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,404.70 : 981,477.45 = 317,444.70 : x
  2. Step 2: Convert to fraction form
    654,404.70/981,477.45 = 317,444.70/x
  3. Step 3: Cross multiply
    654,404.70x = 981,477.45 × 317,444.70
  4. Step 4: Simplify right side
    654,404.70x = 311,564,814,672.02
  5. Step 5: Solve for x
    x = 311,564,814,672.02/654,404.70
  6. Step 6: Final answer
    x = 476,104.18

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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.