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Finding the Fourth Proportional to 655,677.36, 904,857.12 and 383,770.56

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Solution

The fourth proportional to 655,677.36, 904,857.12 and 383,770.56 is: 529,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,677.36 : 904,857.12 = 383,770.56 : x
  2. Step 2: Convert to fraction form
    655,677.36/904,857.12 = 383,770.56/x
  3. Step 3: Cross multiply
    655,677.36x = 904,857.12 × 383,770.56
  4. Step 4: Simplify right side
    655,677.36x = 347,257,523,662.39
  5. Step 5: Solve for x
    x = 347,257,523,662.39/655,677.36
  6. Step 6: Final answer
    x = 529,616.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.