Home / 939,563.20-1,409,762.40-379,691.20

Finding the Fourth Proportional to 939,563.20, 1,409,762.40 and 379,691.20

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Solution

The fourth proportional to 939,563.20, 1,409,762.40 and 379,691.20 is: 569,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,563.20 : 1,409,762.40 = 379,691.20 : x
  2. Step 2: Convert to fraction form
    939,563.20/1,409,762.40 = 379,691.20/x
  3. Step 3: Cross multiply
    939,563.20x = 1,409,762.40 × 379,691.20
  4. Step 4: Simplify right side
    939,563.20x = 535,274,377,370.88
  5. Step 5: Solve for x
    x = 535,274,377,370.88/939,563.20
  6. Step 6: Final answer
    x = 569,705.56

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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.