Home / 510,933.05-705,088.27-278,358.84

Finding the Fourth Proportional to 510,933.05, 705,088.27 and 278,358.84

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Solution

The fourth proportional to 510,933.05, 705,088.27 and 278,358.84 is: 384,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,933.05 : 705,088.27 = 278,358.84 : x
  2. Step 2: Convert to fraction form
    510,933.05/705,088.27 = 278,358.84/x
  3. Step 3: Cross multiply
    510,933.05x = 705,088.27 × 278,358.84
  4. Step 4: Simplify right side
    510,933.05x = 196,267,551,716.99
  5. Step 5: Solve for x
    x = 196,267,551,716.99/510,933.05
  6. Step 6: Final answer
    x = 384,135.55

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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.