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Finding the Fourth Proportional to 655,571.18, 904,705.26 and 369,101.72

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Solution

The fourth proportional to 655,571.18, 904,705.26 and 369,101.72 is: 509,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,571.18 : 904,705.26 = 369,101.72 : x
  2. Step 2: Convert to fraction form
    655,571.18/904,705.26 = 369,101.72/x
  3. Step 3: Cross multiply
    655,571.18x = 904,705.26 × 369,101.72
  4. Step 4: Simplify right side
    655,571.18x = 333,928,267,559.05
  5. Step 5: Solve for x
    x = 333,928,267,559.05/655,571.18
  6. Step 6: Final answer
    x = 509,369.96

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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.