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Finding the Fourth Proportional to 551,479.10, 773,120.50 and 551,479.10

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Solution

The fourth proportional to 551,479.10, 773,120.50 and 551,479.10 is: 773,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,479.10 : 773,120.50 = 551,479.10 : x
  2. Step 2: Convert to fraction form
    551,479.10/773,120.50 = 551,479.10/x
  3. Step 3: Cross multiply
    551,479.10x = 773,120.50 × 551,479.10
  4. Step 4: Simplify right side
    551,479.10x = 426,359,797,531.55
  5. Step 5: Solve for x
    x = 426,359,797,531.55/551,479.10
  6. Step 6: Final answer
    x = 773,120.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.