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Finding the Fourth Proportional to 505,153.76, 755,428.70 and 377,159.58

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Solution

The fourth proportional to 505,153.76, 755,428.70 and 377,159.58 is: 564,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,153.76 : 755,428.70 = 377,159.58 : x
  2. Step 2: Convert to fraction form
    505,153.76/755,428.70 = 377,159.58/x
  3. Step 3: Cross multiply
    505,153.76x = 755,428.70 × 377,159.58
  4. Step 4: Simplify right side
    505,153.76x = 284,917,172,154.85
  5. Step 5: Solve for x
    x = 284,917,172,154.85/505,153.76
  6. Step 6: Final answer
    x = 564,020.70

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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.