Home / 866,558.60-1,300,605.90-511,128.20

Finding the Fourth Proportional to 866,558.60, 1,300,605.90 and 511,128.20

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Solution

The fourth proportional to 866,558.60, 1,300,605.90 and 511,128.20 is: 767,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,558.60 : 1,300,605.90 = 511,128.20 : x
  2. Step 2: Convert to fraction form
    866,558.60/1,300,605.90 = 511,128.20/x
  3. Step 3: Cross multiply
    866,558.60x = 1,300,605.90 × 511,128.20
  4. Step 4: Simplify right side
    866,558.60x = 664,776,352,576.38
  5. Step 5: Solve for x
    x = 664,776,352,576.38/866,558.60
  6. Step 6: Final answer
    x = 767,145.29

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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.