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Finding the Fourth Proportional to 655,272.46, 904,305.09 and 368,811.10

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Solution

The fourth proportional to 655,272.46, 904,305.09 and 368,811.10 is: 508,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,272.46 : 904,305.09 = 368,811.10 : x
  2. Step 2: Convert to fraction form
    655,272.46/904,305.09 = 368,811.10/x
  3. Step 3: Cross multiply
    655,272.46x = 904,305.09 × 368,811.10
  4. Step 4: Simplify right side
    655,272.46x = 333,517,754,978.50
  5. Step 5: Solve for x
    x = 333,517,754,978.50/655,272.46
  6. Step 6: Final answer
    x = 508,975.69

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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.