Home / 864,987.12-1,297,604.70-265,998.60

Finding the Fourth Proportional to 864,987.12, 1,297,604.70 and 265,998.60

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Solution

The fourth proportional to 864,987.12, 1,297,604.70 and 265,998.60 is: 399,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,987.12 : 1,297,604.70 = 265,998.60 : x
  2. Step 2: Convert to fraction form
    864,987.12/1,297,604.70 = 265,998.60/x
  3. Step 3: Cross multiply
    864,987.12x = 1,297,604.70 × 265,998.60
  4. Step 4: Simplify right side
    864,987.12x = 345,161,033,553.42
  5. Step 5: Solve for x
    x = 345,161,033,553.42/864,987.12
  6. Step 6: Final answer
    x = 399,036.04

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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.