Home / 878,028.48-1,211,685.12-475,620.48

Finding the Fourth Proportional to 878,028.48, 1,211,685.12 and 475,620.48

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Solution

The fourth proportional to 878,028.48, 1,211,685.12 and 475,620.48 is: 656,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,028.48 : 1,211,685.12 = 475,620.48 : x
  2. Step 2: Convert to fraction form
    878,028.48/1,211,685.12 = 475,620.48/x
  3. Step 3: Cross multiply
    878,028.48x = 1,211,685.12 × 475,620.48
  4. Step 4: Simplify right side
    878,028.48x = 576,302,258,383.26
  5. Step 5: Solve for x
    x = 576,302,258,383.26/878,028.48
  6. Step 6: Final answer
    x = 656,359.41

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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.