Home / 811,775.88-1,120,027.32-505,901.88

Finding the Fourth Proportional to 811,775.88, 1,120,027.32 and 505,901.88

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Solution

The fourth proportional to 811,775.88, 1,120,027.32 and 505,901.88 is: 698,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,775.88 : 1,120,027.32 = 505,901.88 : x
  2. Step 2: Convert to fraction form
    811,775.88/1,120,027.32 = 505,901.88/x
  3. Step 3: Cross multiply
    811,775.88x = 1,120,027.32 × 505,901.88
  4. Step 4: Simplify right side
    811,775.88x = 566,623,926,839.36
  5. Step 5: Solve for x
    x = 566,623,926,839.36/811,775.88
  6. Step 6: Final answer
    x = 698,005.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.