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Finding the Fourth Proportional to 655,517.85, 904,631.56 and 369,048.18

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Solution

The fourth proportional to 655,517.85, 904,631.56 and 369,048.18 is: 509,296.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,517.85 : 904,631.56 = 369,048.18 : x
  2. Step 2: Convert to fraction form
    655,517.85/904,631.56 = 369,048.18/x
  3. Step 3: Cross multiply
    655,517.85x = 904,631.56 × 369,048.18
  4. Step 4: Simplify right side
    655,517.85x = 333,852,633,258.31
  5. Step 5: Solve for x
    x = 333,852,633,258.31/655,517.85
  6. Step 6: Final answer
    x = 509,296.02

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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.