Home / 764,274.64-1,146,437.46-343,551.76

Finding the Fourth Proportional to 764,274.64, 1,146,437.46 and 343,551.76

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Solution

The fourth proportional to 764,274.64, 1,146,437.46 and 343,551.76 is: 515,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,274.64 : 1,146,437.46 = 343,551.76 : x
  2. Step 2: Convert to fraction form
    764,274.64/1,146,437.46 = 343,551.76/x
  3. Step 3: Cross multiply
    764,274.64x = 1,146,437.46 × 343,551.76
  4. Step 4: Simplify right side
    764,274.64x = 393,860,607,112.93
  5. Step 5: Solve for x
    x = 393,860,607,112.93/764,274.64
  6. Step 6: Final answer
    x = 515,339.10

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1.5x scale

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.