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Finding the Fourth Proportional to 655,967.35, 904,925.59 and 383,868.42

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Solution

The fourth proportional to 655,967.35, 904,925.59 and 383,868.42 is: 529,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,967.35 : 904,925.59 = 383,868.42 : x
  2. Step 2: Convert to fraction form
    655,967.35/904,925.59 = 383,868.42/x
  3. Step 3: Cross multiply
    655,967.35x = 904,925.59 × 383,868.42
  4. Step 4: Simplify right side
    655,967.35x = 347,372,356,450.87
  5. Step 5: Solve for x
    x = 347,372,356,450.87/655,967.35
  6. Step 6: Final answer
    x = 529,557.39

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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.