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Finding the Fourth Proportional to 655,220.46, 904,054.62 and 368,635.98

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Solution

The fourth proportional to 655,220.46, 904,054.62 and 368,635.98 is: 508,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,220.46 : 904,054.62 = 368,635.98 : x
  2. Step 2: Convert to fraction form
    655,220.46/904,054.62 = 368,635.98/x
  3. Step 3: Cross multiply
    655,220.46x = 904,054.62 × 368,635.98
  4. Step 4: Simplify right side
    655,220.46x = 333,267,060,817.23
  5. Step 5: Solve for x
    x = 333,267,060,817.23/655,220.46
  6. Step 6: Final answer
    x = 508,633.48

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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.