Home / 878,172.48-1,211,883.84-475,764.48

Finding the Fourth Proportional to 878,172.48, 1,211,883.84 and 475,764.48

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Solution

The fourth proportional to 878,172.48, 1,211,883.84 and 475,764.48 is: 656,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,172.48 : 1,211,883.84 = 475,764.48 : x
  2. Step 2: Convert to fraction form
    878,172.48/1,211,883.84 = 475,764.48/x
  3. Step 3: Cross multiply
    878,172.48x = 1,211,883.84 × 475,764.48
  4. Step 4: Simplify right side
    878,172.48x = 576,571,284,958.00
  5. Step 5: Solve for x
    x = 576,571,284,958.00/878,172.48
  6. Step 6: Final answer
    x = 656,558.13

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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.