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Finding the Fourth Proportional to 655,635.84, 904,702.56 and 369,148.56

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Solution

The fourth proportional to 655,635.84, 904,702.56 and 369,148.56 is: 509,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,635.84 : 904,702.56 = 369,148.56 : x
  2. Step 2: Convert to fraction form
    655,635.84/904,702.56 = 369,148.56/x
  3. Step 3: Cross multiply
    655,635.84x = 904,702.56 × 369,148.56
  4. Step 4: Simplify right side
    655,635.84x = 333,969,647,252.31
  5. Step 5: Solve for x
    x = 333,969,647,252.31/655,635.84
  6. Step 6: Final answer
    x = 509,382.84

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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.