Home / 1,040,409.60-1,560,290.40-409,516.80

Finding the Fourth Proportional to 1,040,409.60, 1,560,290.40 and 409,516.80

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Solution

The fourth proportional to 1,040,409.60, 1,560,290.40 and 409,516.80 is: 614,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,409.60 : 1,560,290.40 = 409,516.80 : x
  2. Step 2: Convert to fraction form
    1,040,409.60/1,560,290.40 = 409,516.80/x
  3. Step 3: Cross multiply
    1,040,409.60x = 1,560,290.40 × 409,516.80
  4. Step 4: Simplify right side
    1,040,409.60x = 638,965,131,678.72
  5. Step 5: Solve for x
    x = 638,965,131,678.72/1,040,409.60
  6. Step 6: Final answer
    x = 614,147.67

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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.