Home / 1,259,809.47-1,890,501.53-511,855.47

Finding the Fourth Proportional to 1,259,809.47, 1,890,501.53 and 511,855.47

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Solution

The fourth proportional to 1,259,809.47, 1,890,501.53 and 511,855.47 is: 768,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,809.47 : 1,890,501.53 = 511,855.47 : x
  2. Step 2: Convert to fraction form
    1,259,809.47/1,890,501.53 = 511,855.47/x
  3. Step 3: Cross multiply
    1,259,809.47x = 1,890,501.53 × 511,855.47
  4. Step 4: Simplify right side
    1,259,809.47x = 967,663,546,614.59
  5. Step 5: Solve for x
    x = 967,663,546,614.59/1,259,809.47
  6. Step 6: Final answer
    x = 768,103.09

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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.