Home / 1,190,689.20-1,786,230.60-551,631.60

Finding the Fourth Proportional to 1,190,689.20, 1,786,230.60 and 551,631.60

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Solution

The fourth proportional to 1,190,689.20, 1,786,230.60 and 551,631.60 is: 827,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,689.20 : 1,786,230.60 = 551,631.60 : x
  2. Step 2: Convert to fraction form
    1,190,689.20/1,786,230.60 = 551,631.60/x
  3. Step 3: Cross multiply
    1,190,689.20x = 1,786,230.60 × 551,631.60
  4. Step 4: Simplify right side
    1,190,689.20x = 985,341,243,846.96
  5. Step 5: Solve for x
    x = 985,341,243,846.96/1,190,689.20
  6. Step 6: Final answer
    x = 827,538.58

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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.