Home / 781,243.85-1,171,744.90-301,401.68

Finding the Fourth Proportional to 781,243.85, 1,171,744.90 and 301,401.68

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Solution

The fourth proportional to 781,243.85, 1,171,744.90 and 301,401.68 is: 452,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,243.85 : 1,171,744.90 = 301,401.68 : x
  2. Step 2: Convert to fraction form
    781,243.85/1,171,744.90 = 301,401.68/x
  3. Step 3: Cross multiply
    781,243.85x = 1,171,744.90 × 301,401.68
  4. Step 4: Simplify right side
    781,243.85x = 353,165,874,779.20
  5. Step 5: Solve for x
    x = 353,165,874,779.20/781,243.85
  6. Step 6: Final answer
    x = 452,055.88

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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.