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Finding the Fourth Proportional to 655,051.91, 903,911.83 and 383,072.49

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Solution

The fourth proportional to 655,051.91, 903,911.83 and 383,072.49 is: 528,605.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,051.91 : 903,911.83 = 383,072.49 : x
  2. Step 2: Convert to fraction form
    655,051.91/903,911.83 = 383,072.49/x
  3. Step 3: Cross multiply
    655,051.91x = 903,911.83 × 383,072.49
  4. Step 4: Simplify right side
    655,051.91x = 346,263,754,500.88
  5. Step 5: Solve for x
    x = 346,263,754,500.88/655,051.91
  6. Step 6: Final answer
    x = 528,605.06

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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.