Home / 1,314,930.60-1,972,395.90-515,800.80

Finding the Fourth Proportional to 1,314,930.60, 1,972,395.90 and 515,800.80

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Solution

The fourth proportional to 1,314,930.60, 1,972,395.90 and 515,800.80 is: 773,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,930.60 : 1,972,395.90 = 515,800.80 : x
  2. Step 2: Convert to fraction form
    1,314,930.60/1,972,395.90 = 515,800.80/x
  3. Step 3: Cross multiply
    1,314,930.60x = 1,972,395.90 × 515,800.80
  4. Step 4: Simplify right side
    1,314,930.60x = 1,017,363,383,136.72
  5. Step 5: Solve for x
    x = 1,017,363,383,136.72/1,314,930.60
  6. Step 6: Final answer
    x = 773,701.20

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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.