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Finding the Fourth Proportional to 902,912.40, 1,354,368.60 and 804,934.80

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Solution

The fourth proportional to 902,912.40, 1,354,368.60 and 804,934.80 is: 1,207,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,912.40 : 1,354,368.60 = 804,934.80 : x
  2. Step 2: Convert to fraction form
    902,912.40/1,354,368.60 = 804,934.80/x
  3. Step 3: Cross multiply
    902,912.40x = 1,354,368.60 × 804,934.80
  4. Step 4: Simplify right side
    902,912.40x = 1,090,178,418,167.28
  5. Step 5: Solve for x
    x = 1,090,178,418,167.28/902,912.40
  6. Step 6: Final answer
    x = 1,207,402.20

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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.