Home / 1,391,527.20-2,086,999.20-682,064.40

Finding the Fourth Proportional to 1,391,527.20, 2,086,999.20 and 682,064.40

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Solution

The fourth proportional to 1,391,527.20, 2,086,999.20 and 682,064.40 is: 1,022,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,527.20 : 2,086,999.20 = 682,064.40 : x
  2. Step 2: Convert to fraction form
    1,391,527.20/2,086,999.20 = 682,064.40/x
  3. Step 3: Cross multiply
    1,391,527.20x = 2,086,999.20 × 682,064.40
  4. Step 4: Simplify right side
    1,391,527.20x = 1,423,467,857,148.48
  5. Step 5: Solve for x
    x = 1,423,467,857,148.48/1,391,527.20
  6. Step 6: Final answer
    x = 1,022,953.67

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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.