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Finding the Fourth Proportional to 551,442.80, 827,317.80 and 270,969.20

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Solution

The fourth proportional to 551,442.80, 827,317.80 and 270,969.20 is: 406,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,442.80 : 827,317.80 = 270,969.20 : x
  2. Step 2: Convert to fraction form
    551,442.80/827,317.80 = 270,969.20/x
  3. Step 3: Cross multiply
    551,442.80x = 827,317.80 × 270,969.20
  4. Step 4: Simplify right side
    551,442.80x = 224,177,642,411.76
  5. Step 5: Solve for x
    x = 224,177,642,411.76/551,442.80
  6. Step 6: Final answer
    x = 406,529.28

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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.