Home / 1,272,481.26-1,908,672.08-431,033.01

Finding the Fourth Proportional to 1,272,481.26, 1,908,672.08 and 431,033.01

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Solution

The fourth proportional to 1,272,481.26, 1,908,672.08 and 431,033.01 is: 646,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,481.26 : 1,908,672.08 = 431,033.01 : x
  2. Step 2: Convert to fraction form
    1,272,481.26/1,908,672.08 = 431,033.01/x
  3. Step 3: Cross multiply
    1,272,481.26x = 1,908,672.08 × 431,033.01
  4. Step 4: Simplify right side
    1,272,481.26x = 822,700,669,590.20
  5. Step 5: Solve for x
    x = 822,700,669,590.20/1,272,481.26
  6. Step 6: Final answer
    x = 646,532.64

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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.