Home / 1,515,890.83-2,091,916.52-836,812.75

Finding the Fourth Proportional to 1,515,890.83, 2,091,916.52 and 836,812.75

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Solution

The fourth proportional to 1,515,890.83, 2,091,916.52 and 836,812.75 is: 1,154,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,890.83 : 2,091,916.52 = 836,812.75 : x
  2. Step 2: Convert to fraction form
    1,515,890.83/2,091,916.52 = 836,812.75/x
  3. Step 3: Cross multiply
    1,515,890.83x = 2,091,916.52 × 836,812.75
  4. Step 4: Simplify right side
    1,515,890.83x = 1,750,542,411,687.57
  5. Step 5: Solve for x
    x = 1,750,542,411,687.57/1,515,890.83
  6. Step 6: Final answer
    x = 1,154,794.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.