Home / 816,212.40-1,224,330.75-283,751.61

Finding the Fourth Proportional to 816,212.40, 1,224,330.75 and 283,751.61

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Solution

The fourth proportional to 816,212.40, 1,224,330.75 and 283,751.61 is: 425,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,212.40 : 1,224,330.75 = 283,751.61 : x
  2. Step 2: Convert to fraction form
    816,212.40/1,224,330.75 = 283,751.61/x
  3. Step 3: Cross multiply
    816,212.40x = 1,224,330.75 × 283,751.61
  4. Step 4: Simplify right side
    816,212.40x = 347,405,821,485.01
  5. Step 5: Solve for x
    x = 347,405,821,485.01/816,212.40
  6. Step 6: Final answer
    x = 425,631.64

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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.