Home / 1,242,006.60-1,863,009.90-443,314.20

Finding the Fourth Proportional to 1,242,006.60, 1,863,009.90 and 443,314.20

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Solution

The fourth proportional to 1,242,006.60, 1,863,009.90 and 443,314.20 is: 664,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,006.60 : 1,863,009.90 = 443,314.20 : x
  2. Step 2: Convert to fraction form
    1,242,006.60/1,863,009.90 = 443,314.20/x
  3. Step 3: Cross multiply
    1,242,006.60x = 1,863,009.90 × 443,314.20
  4. Step 4: Simplify right side
    1,242,006.60x = 825,898,743,410.58
  5. Step 5: Solve for x
    x = 825,898,743,410.58/1,242,006.60
  6. Step 6: Final answer
    x = 664,971.30

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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.