Home / 764,376.93-1,054,777.47-449,998.88

Finding the Fourth Proportional to 764,376.93, 1,054,777.47 and 449,998.88

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Solution

The fourth proportional to 764,376.93, 1,054,777.47 and 449,998.88 is: 620,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,376.93 : 1,054,777.47 = 449,998.88 : x
  2. Step 2: Convert to fraction form
    764,376.93/1,054,777.47 = 449,998.88/x
  3. Step 3: Cross multiply
    764,376.93x = 1,054,777.47 × 449,998.88
  4. Step 4: Simplify right side
    764,376.93x = 474,648,674,875.35
  5. Step 5: Solve for x
    x = 474,648,674,875.35/764,376.93
  6. Step 6: Final answer
    x = 620,961.54

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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.