Home / 635,719.68-878,070.24-475,287.84

Finding the Fourth Proportional to 635,719.68, 878,070.24 and 475,287.84

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Solution

The fourth proportional to 635,719.68, 878,070.24 and 475,287.84 is: 656,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,719.68 : 878,070.24 = 475,287.84 : x
  2. Step 2: Convert to fraction form
    635,719.68/878,070.24 = 475,287.84/x
  3. Step 3: Cross multiply
    635,719.68x = 878,070.24 × 475,287.84
  4. Step 4: Simplify right side
    635,719.68x = 417,336,107,737.88
  5. Step 5: Solve for x
    x = 417,336,107,737.88/635,719.68
  6. Step 6: Final answer
    x = 656,478.19

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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.