Home / 487,919.83-673,314.87-270,138.19

Finding the Fourth Proportional to 487,919.83, 673,314.87 and 270,138.19

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Solution

The fourth proportional to 487,919.83, 673,314.87 and 270,138.19 is: 372,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,919.83 : 673,314.87 = 270,138.19 : x
  2. Step 2: Convert to fraction form
    487,919.83/673,314.87 = 270,138.19/x
  3. Step 3: Cross multiply
    487,919.83x = 673,314.87 × 270,138.19
  4. Step 4: Simplify right side
    487,919.83x = 181,888,059,611.62
  5. Step 5: Solve for x
    x = 181,888,059,611.62/487,919.83
  6. Step 6: Final answer
    x = 372,782.68

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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.