Home / 553,811.49-764,514.99-324,336.87

Finding the Fourth Proportional to 553,811.49, 764,514.99 and 324,336.87

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Solution

The fourth proportional to 553,811.49, 764,514.99 and 324,336.87 is: 447,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,811.49 : 764,514.99 = 324,336.87 : x
  2. Step 2: Convert to fraction form
    553,811.49/764,514.99 = 324,336.87/x
  3. Step 3: Cross multiply
    553,811.49x = 764,514.99 × 324,336.87
  4. Step 4: Simplify right side
    553,811.49x = 247,960,398,924.68
  5. Step 5: Solve for x
    x = 247,960,398,924.68/553,811.49
  6. Step 6: Final answer
    x = 447,734.30

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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.