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Finding the Fourth Proportional to 893,999.70, 1,340,481.15 and 333,090.90

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Solution

The fourth proportional to 893,999.70, 1,340,481.15 and 333,090.90 is: 499,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,999.70 : 1,340,481.15 = 333,090.90 : x
  2. Step 2: Convert to fraction form
    893,999.70/1,340,481.15 = 333,090.90/x
  3. Step 3: Cross multiply
    893,999.70x = 1,340,481.15 × 333,090.90
  4. Step 4: Simplify right side
    893,999.70x = 446,502,072,686.54
  5. Step 5: Solve for x
    x = 446,502,072,686.54/893,999.70
  6. Step 6: Final answer
    x = 499,443.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.