Home / 864,399.70-1,296,599.55-550,249.30

Finding the Fourth Proportional to 864,399.70, 1,296,599.55 and 550,249.30

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Solution

The fourth proportional to 864,399.70, 1,296,599.55 and 550,249.30 is: 825,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,399.70 : 1,296,599.55 = 550,249.30 : x
  2. Step 2: Convert to fraction form
    864,399.70/1,296,599.55 = 550,249.30/x
  3. Step 3: Cross multiply
    864,399.70x = 1,296,599.55 × 550,249.30
  4. Step 4: Simplify right side
    864,399.70x = 713,452,994,767.82
  5. Step 5: Solve for x
    x = 713,452,994,767.82/864,399.70
  6. Step 6: Final answer
    x = 825,373.95

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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.