Home / 904,996.80-1,357,790.45-431,620.65

Finding the Fourth Proportional to 904,996.80, 1,357,790.45 and 431,620.65

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Solution

The fourth proportional to 904,996.80, 1,357,790.45 and 431,620.65 is: 647,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,996.80 : 1,357,790.45 = 431,620.65 : x
  2. Step 2: Convert to fraction form
    904,996.80/1,357,790.45 = 431,620.65/x
  3. Step 3: Cross multiply
    904,996.80x = 1,357,790.45 × 431,620.65
  4. Step 4: Simplify right side
    904,996.80x = 586,050,394,434.69
  5. Step 5: Solve for x
    x = 586,050,394,434.69/904,996.80
  6. Step 6: Final answer
    x = 647,571.79

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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.