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Finding the Fourth Proportional to 551,319.66, 826,480.17 and 382,919.49

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Solution

The fourth proportional to 551,319.66, 826,480.17 and 382,919.49 is: 574,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,319.66 : 826,480.17 = 382,919.49 : x
  2. Step 2: Convert to fraction form
    551,319.66/826,480.17 = 382,919.49/x
  3. Step 3: Cross multiply
    551,319.66x = 826,480.17 × 382,919.49
  4. Step 4: Simplify right side
    551,319.66x = 316,475,365,191.51
  5. Step 5: Solve for x
    x = 316,475,365,191.51/551,319.66
  6. Step 6: Final answer
    x = 574,032.43

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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.