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Finding the Fourth Proportional to 630,166.60, 945,249.90 and 551,434.60

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Solution

The fourth proportional to 630,166.60, 945,249.90 and 551,434.60 is: 827,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,166.60 : 945,249.90 = 551,434.60 : x
  2. Step 2: Convert to fraction form
    630,166.60/945,249.90 = 551,434.60/x
  3. Step 3: Cross multiply
    630,166.60x = 945,249.90 × 551,434.60
  4. Step 4: Simplify right side
    630,166.60x = 521,243,500,506.54
  5. Step 5: Solve for x
    x = 521,243,500,506.54/630,166.60
  6. Step 6: Final answer
    x = 827,151.90

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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.