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Finding the Fourth Proportional to 434,334.60, 599,415.72 and 279,424.20

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Solution

The fourth proportional to 434,334.60, 599,415.72 and 279,424.20 is: 385,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,334.60 : 599,415.72 = 279,424.20 : x
  2. Step 2: Convert to fraction form
    434,334.60/599,415.72 = 279,424.20/x
  3. Step 3: Cross multiply
    434,334.60x = 599,415.72 × 279,424.20
  4. Step 4: Simplify right side
    434,334.60x = 167,491,258,028.42
  5. Step 5: Solve for x
    x = 167,491,258,028.42/434,334.60
  6. Step 6: Final answer
    x = 385,627.25

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1.5x scale

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.