Home / 764,378.45-1,146,705.57-314,853.96

Finding the Fourth Proportional to 764,378.45, 1,146,705.57 and 314,853.96

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Solution

The fourth proportional to 764,378.45, 1,146,705.57 and 314,853.96 is: 472,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,378.45 : 1,146,705.57 = 314,853.96 : x
  2. Step 2: Convert to fraction form
    764,378.45/1,146,705.57 = 314,853.96/x
  3. Step 3: Cross multiply
    764,378.45x = 1,146,705.57 × 314,853.96
  4. Step 4: Simplify right side
    764,378.45x = 361,044,789,668.56
  5. Step 5: Solve for x
    x = 361,044,789,668.56/764,378.45
  6. Step 6: Final answer
    x = 472,337.74

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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.