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Finding the Fourth Proportional to 551,389.20, 827,083.80 and 270,848.40

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Solution

The fourth proportional to 551,389.20, 827,083.80 and 270,848.40 is: 406,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,389.20 : 827,083.80 = 270,848.40 : x
  2. Step 2: Convert to fraction form
    551,389.20/827,083.80 = 270,848.40/x
  3. Step 3: Cross multiply
    551,389.20x = 827,083.80 × 270,848.40
  4. Step 4: Simplify right side
    551,389.20x = 224,014,323,895.92
  5. Step 5: Solve for x
    x = 224,014,323,895.92/551,389.20
  6. Step 6: Final answer
    x = 406,272.60

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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.