Home / 1,272,455.42-1,908,633.26-431,007.14

Finding the Fourth Proportional to 1,272,455.42, 1,908,633.26 and 431,007.14

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Solution

The fourth proportional to 1,272,455.42, 1,908,633.26 and 431,007.14 is: 646,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,455.42 : 1,908,633.26 = 431,007.14 : x
  2. Step 2: Convert to fraction form
    1,272,455.42/1,908,633.26 = 431,007.14/x
  3. Step 3: Cross multiply
    1,272,455.42x = 1,908,633.26 × 431,007.14
  4. Step 4: Simplify right side
    1,272,455.42x = 822,634,554,235.83
  5. Step 5: Solve for x
    x = 822,634,554,235.83/1,272,455.42
  6. Step 6: Final answer
    x = 646,493.81

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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.