Home / 939,569.20-1,409,771.40-379,697.20

Finding the Fourth Proportional to 939,569.20, 1,409,771.40 and 379,697.20

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Solution

The fourth proportional to 939,569.20, 1,409,771.40 and 379,697.20 is: 569,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,569.20 : 1,409,771.40 = 379,697.20 : x
  2. Step 2: Convert to fraction form
    939,569.20/1,409,771.40 = 379,697.20/x
  3. Step 3: Cross multiply
    939,569.20x = 1,409,771.40 × 379,697.20
  4. Step 4: Simplify right side
    939,569.20x = 535,286,253,220.08
  5. Step 5: Solve for x
    x = 535,286,253,220.08/939,569.20
  6. Step 6: Final answer
    x = 569,714.56

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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.