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Finding the Fourth Proportional to 655,281.96, 904,318.23 and 368,820.60

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Solution

The fourth proportional to 655,281.96, 904,318.23 and 368,820.60 is: 508,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,281.96 : 904,318.23 = 368,820.60 : x
  2. Step 2: Convert to fraction form
    655,281.96/904,318.23 = 368,820.60/x
  3. Step 3: Cross multiply
    655,281.96x = 904,318.23 × 368,820.60
  4. Step 4: Simplify right side
    655,281.96x = 333,531,192,179.54
  5. Step 5: Solve for x
    x = 333,531,192,179.54/655,281.96
  6. Step 6: Final answer
    x = 508,988.82

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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.