Home / 1,241,305.20-1,861,957.80-768,913.20

Finding the Fourth Proportional to 1,241,305.20, 1,861,957.80 and 768,913.20

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Solution

The fourth proportional to 1,241,305.20, 1,861,957.80 and 768,913.20 is: 1,153,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,305.20 : 1,861,957.80 = 768,913.20 : x
  2. Step 2: Convert to fraction form
    1,241,305.20/1,861,957.80 = 768,913.20/x
  3. Step 3: Cross multiply
    1,241,305.20x = 1,861,957.80 × 768,913.20
  4. Step 4: Simplify right side
    1,241,305.20x = 1,431,683,930,262.96
  5. Step 5: Solve for x
    x = 1,431,683,930,262.96/1,241,305.20
  6. Step 6: Final answer
    x = 1,153,369.80

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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.