Home / 1,815,907.78-2,720,180.07-841,903.78

Finding the Fourth Proportional to 1,815,907.78, 2,720,180.07 and 841,903.78

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Solution

The fourth proportional to 1,815,907.78, 2,720,180.07 and 841,903.78 is: 1,261,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,907.78 : 2,720,180.07 = 841,903.78 : x
  2. Step 2: Convert to fraction form
    1,815,907.78/2,720,180.07 = 841,903.78/x
  3. Step 3: Cross multiply
    1,815,907.78x = 2,720,180.07 × 841,903.78
  4. Step 4: Simplify right side
    1,815,907.78x = 2,290,129,883,213.66
  5. Step 5: Solve for x
    x = 2,290,129,883,213.66/1,815,907.78
  6. Step 6: Final answer
    x = 1,261,148.78

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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.