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Finding the Fourth Proportional to 604,310.40, 905,153.40 and 368,114.40

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Solution

The fourth proportional to 604,310.40, 905,153.40 and 368,114.40 is: 551,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,310.40 : 905,153.40 = 368,114.40 : x
  2. Step 2: Convert to fraction form
    604,310.40/905,153.40 = 368,114.40/x
  3. Step 3: Cross multiply
    604,310.40x = 905,153.40 × 368,114.40
  4. Step 4: Simplify right side
    604,310.40x = 333,200,000,748.96
  5. Step 5: Solve for x
    x = 333,200,000,748.96/604,310.40
  6. Step 6: Final answer
    x = 551,372.28

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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.