Home / 878,078.56-1,211,748.24-475,670.56

Finding the Fourth Proportional to 878,078.56, 1,211,748.24 and 475,670.56

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Solution

The fourth proportional to 878,078.56, 1,211,748.24 and 475,670.56 is: 656,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,078.56 : 1,211,748.24 = 475,670.56 : x
  2. Step 2: Convert to fraction form
    878,078.56/1,211,748.24 = 475,670.56/x
  3. Step 3: Cross multiply
    878,078.56x = 1,211,748.24 × 475,670.56
  4. Step 4: Simplify right side
    878,078.56x = 576,392,963,899.82
  5. Step 5: Solve for x
    x = 576,392,963,899.82/878,078.56
  6. Step 6: Final answer
    x = 656,425.28

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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.