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Finding the Fourth Proportional to 647,550.78, 971,320.08 and 363,240.78

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Solution

The fourth proportional to 647,550.78, 971,320.08 and 363,240.78 is: 544,857.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,550.78 : 971,320.08 = 363,240.78 : x
  2. Step 2: Convert to fraction form
    647,550.78/971,320.08 = 363,240.78/x
  3. Step 3: Cross multiply
    647,550.78x = 971,320.08 × 363,240.78
  4. Step 4: Simplify right side
    647,550.78x = 352,823,063,488.86
  5. Step 5: Solve for x
    x = 352,823,063,488.86/647,550.78
  6. Step 6: Final answer
    x = 544,857.75

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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.