Home / 412,112.86-617,421.79-304,309.10

Finding the Fourth Proportional to 412,112.86, 617,421.79 and 304,309.10

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Solution

The fourth proportional to 412,112.86, 617,421.79 and 304,309.10 is: 455,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,112.86 : 617,421.79 = 304,309.10 : x
  2. Step 2: Convert to fraction form
    412,112.86/617,421.79 = 304,309.10/x
  3. Step 3: Cross multiply
    412,112.86x = 617,421.79 × 304,309.10
  4. Step 4: Simplify right side
    412,112.86x = 187,887,066,528.57
  5. Step 5: Solve for x
    x = 187,887,066,528.57/412,112.86
  6. Step 6: Final answer
    x = 455,911.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.