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Finding the Fourth Proportional to 617,998.79, 852,767.84 and 346,028.87

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Solution

The fourth proportional to 617,998.79, 852,767.84 and 346,028.87 is: 477,480.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,998.79 : 852,767.84 = 346,028.87 : x
  2. Step 2: Convert to fraction form
    617,998.79/852,767.84 = 346,028.87/x
  3. Step 3: Cross multiply
    617,998.79x = 852,767.84 × 346,028.87
  4. Step 4: Simplify right side
    617,998.79x = 295,082,286,053.56
  5. Step 5: Solve for x
    x = 295,082,286,053.56/617,998.79
  6. Step 6: Final answer
    x = 477,480.37

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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.