Home / 683,928-943,792.56-397,445.76

Finding the Fourth Proportional to 683,928, 943,792.56 and 397,445.76

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Solution

The fourth proportional to 683,928, 943,792.56 and 397,445.76 is: 548,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,928 : 943,792.56 = 397,445.76 : x
  2. Step 2: Convert to fraction form
    683,928/943,792.56 = 397,445.76/x
  3. Step 3: Cross multiply
    683,928x = 943,792.56 × 397,445.76
  4. Step 4: Simplify right side
    683,928x = 375,106,351,291.55
  5. Step 5: Solve for x
    x = 375,106,351,291.55/683,928
  6. Step 6: Final answer
    x = 548,458.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.