Home / 764,439.21-1,146,973.14-337,749.84

Finding the Fourth Proportional to 764,439.21, 1,146,973.14 and 337,749.84

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Solution

The fourth proportional to 764,439.21, 1,146,973.14 and 337,749.84 is: 506,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,439.21 : 1,146,973.14 = 337,749.84 : x
  2. Step 2: Convert to fraction form
    764,439.21/1,146,973.14 = 337,749.84/x
  3. Step 3: Cross multiply
    764,439.21x = 1,146,973.14 × 337,749.84
  4. Step 4: Simplify right side
    764,439.21x = 387,389,994,519.30
  5. Step 5: Solve for x
    x = 387,389,994,519.30/764,439.21
  6. Step 6: Final answer
    x = 506,763.64

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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.