Home / 751,225.68-1,126,840.50-218,759.76

Finding the Fourth Proportional to 751,225.68, 1,126,840.50 and 218,759.76

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Solution

The fourth proportional to 751,225.68, 1,126,840.50 and 218,759.76 is: 328,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,225.68 : 1,126,840.50 = 218,759.76 : x
  2. Step 2: Convert to fraction form
    751,225.68/1,126,840.50 = 218,759.76/x
  3. Step 3: Cross multiply
    751,225.68x = 1,126,840.50 × 218,759.76
  4. Step 4: Simplify right side
    751,225.68x = 246,507,357,338.28
  5. Step 5: Solve for x
    x = 246,507,357,338.28/751,225.68
  6. Step 6: Final answer
    x = 328,140.22

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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.