Home / 1,200,518.15-1,800,780.27-490,546.18

Finding the Fourth Proportional to 1,200,518.15, 1,800,780.27 and 490,546.18

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Solution

The fourth proportional to 1,200,518.15, 1,800,780.27 and 490,546.18 is: 735,820.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,518.15 : 1,800,780.27 = 490,546.18 : x
  2. Step 2: Convert to fraction form
    1,200,518.15/1,800,780.27 = 490,546.18/x
  3. Step 3: Cross multiply
    1,200,518.15x = 1,800,780.27 × 490,546.18
  4. Step 4: Simplify right side
    1,200,518.15x = 883,365,882,467.87
  5. Step 5: Solve for x
    x = 883,365,882,467.87/1,200,518.15
  6. Step 6: Final answer
    x = 735,820.51

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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.