Home / 490,514.82-677,095.43-286,632.02

Finding the Fourth Proportional to 490,514.82, 677,095.43 and 286,632.02

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Solution

The fourth proportional to 490,514.82, 677,095.43 and 286,632.02 is: 395,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,514.82 : 677,095.43 = 286,632.02 : x
  2. Step 2: Convert to fraction form
    490,514.82/677,095.43 = 286,632.02/x
  3. Step 3: Cross multiply
    490,514.82x = 677,095.43 × 286,632.02
  4. Step 4: Simplify right side
    490,514.82x = 194,077,226,015.03
  5. Step 5: Solve for x
    x = 194,077,226,015.03/490,514.82
  6. Step 6: Final answer
    x = 395,660.27

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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.