Home / 889,911.32-1,334,852.84-215,998.20

Finding the Fourth Proportional to 889,911.32, 1,334,852.84 and 215,998.20

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Solution

The fourth proportional to 889,911.32, 1,334,852.84 and 215,998.20 is: 323,993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,911.32 : 1,334,852.84 = 215,998.20 : x
  2. Step 2: Convert to fraction form
    889,911.32/1,334,852.84 = 215,998.20/x
  3. Step 3: Cross multiply
    889,911.32x = 1,334,852.84 × 215,998.20
  4. Step 4: Simplify right side
    889,911.32x = 288,325,810,704.89
  5. Step 5: Solve for x
    x = 288,325,810,704.89/889,911.32
  6. Step 6: Final answer
    x = 323,993.87

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Double scale
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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.