Home / 1,238,898.60-1,856,015.10-637,813.80

Finding the Fourth Proportional to 1,238,898.60, 1,856,015.10 and 637,813.80

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Solution

The fourth proportional to 1,238,898.60, 1,856,015.10 and 637,813.80 is: 955,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,898.60 : 1,856,015.10 = 637,813.80 : x
  2. Step 2: Convert to fraction form
    1,238,898.60/1,856,015.10 = 637,813.80/x
  3. Step 3: Cross multiply
    1,238,898.60x = 1,856,015.10 × 637,813.80
  4. Step 4: Simplify right side
    1,238,898.60x = 1,183,792,043,788.38
  5. Step 5: Solve for x
    x = 1,183,792,043,788.38/1,238,898.60
  6. Step 6: Final answer
    x = 955,519.72

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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.