Home / 826,003.11-1,239,070.90-313,913.58

Finding the Fourth Proportional to 826,003.11, 1,239,070.90 and 313,913.58

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Solution

The fourth proportional to 826,003.11, 1,239,070.90 and 313,913.58 is: 470,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,003.11 : 1,239,070.90 = 313,913.58 : x
  2. Step 2: Convert to fraction form
    826,003.11/1,239,070.90 = 313,913.58/x
  3. Step 3: Cross multiply
    826,003.11x = 1,239,070.90 × 313,913.58
  4. Step 4: Simplify right side
    826,003.11x = 388,961,182,485.21
  5. Step 5: Solve for x
    x = 388,961,182,485.21/826,003.11
  6. Step 6: Final answer
    x = 470,895.54

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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.