Home / 1,242,181.89-1,863,666.54-443,445.75

Finding the Fourth Proportional to 1,242,181.89, 1,863,666.54 and 443,445.75

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Solution

The fourth proportional to 1,242,181.89, 1,863,666.54 and 443,445.75 is: 665,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,181.89 : 1,863,666.54 = 443,445.75 : x
  2. Step 2: Convert to fraction form
    1,242,181.89/1,863,666.54 = 443,445.75/x
  3. Step 3: Cross multiply
    1,242,181.89x = 1,863,666.54 × 443,445.75
  4. Step 4: Simplify right side
    1,242,181.89x = 826,435,006,580.21
  5. Step 5: Solve for x
    x = 826,435,006,580.21/1,242,181.89
  6. Step 6: Final answer
    x = 665,309.17

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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.