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Finding the Fourth Proportional to 655,460.12, 904,551.96 and 368,990.60

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Solution

The fourth proportional to 655,460.12, 904,551.96 and 368,990.60 is: 509,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,460.12 : 904,551.96 = 368,990.60 : x
  2. Step 2: Convert to fraction form
    655,460.12/904,551.96 = 368,990.60/x
  3. Step 3: Cross multiply
    655,460.12x = 904,551.96 × 368,990.60
  4. Step 4: Simplify right side
    655,460.12x = 333,771,170,451.58
  5. Step 5: Solve for x
    x = 333,771,170,451.58/655,460.12
  6. Step 6: Final answer
    x = 509,216.59

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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.