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Finding the Fourth Proportional to 902,907.40, 1,354,361.10 and 804,929.80

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Solution

The fourth proportional to 902,907.40, 1,354,361.10 and 804,929.80 is: 1,207,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,907.40 : 1,354,361.10 = 804,929.80 : x
  2. Step 2: Convert to fraction form
    902,907.40/1,354,361.10 = 804,929.80/x
  3. Step 3: Cross multiply
    902,907.40x = 1,354,361.10 × 804,929.80
  4. Step 4: Simplify right side
    902,907.40x = 1,090,165,609,350.78
  5. Step 5: Solve for x
    x = 1,090,165,609,350.78/902,907.40
  6. Step 6: Final answer
    x = 1,207,394.70

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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.