Home / 751,205.20-1,036,664.08-407,040.88

Finding the Fourth Proportional to 751,205.20, 1,036,664.08 and 407,040.88

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Solution

The fourth proportional to 751,205.20, 1,036,664.08 and 407,040.88 is: 561,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,205.20 : 1,036,664.08 = 407,040.88 : x
  2. Step 2: Convert to fraction form
    751,205.20/1,036,664.08 = 407,040.88/x
  3. Step 3: Cross multiply
    751,205.20x = 1,036,664.08 × 407,040.88
  4. Step 4: Simplify right side
    751,205.20x = 421,964,659,387.59
  5. Step 5: Solve for x
    x = 421,964,659,387.59/751,205.20
  6. Step 6: Final answer
    x = 561,716.90

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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.