Home / 823,516.40-1,235,332.20-324,815.60

Finding the Fourth Proportional to 823,516.40, 1,235,332.20 and 324,815.60

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Solution

The fourth proportional to 823,516.40, 1,235,332.20 and 324,815.60 is: 487,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,516.40 : 1,235,332.20 = 324,815.60 : x
  2. Step 2: Convert to fraction form
    823,516.40/1,235,332.20 = 324,815.60/x
  3. Step 3: Cross multiply
    823,516.40x = 1,235,332.20 × 324,815.60
  4. Step 4: Simplify right side
    823,516.40x = 401,255,169,742.32
  5. Step 5: Solve for x
    x = 401,255,169,742.32/823,516.40
  6. Step 6: Final answer
    x = 487,246.12

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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.