Home / 2,787,112.80-4,182,403.76-1,507,188.82

Finding the Fourth Proportional to 2,787,112.80, 4,182,403.76 and 1,507,188.82

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Solution

The fourth proportional to 2,787,112.80, 4,182,403.76 and 1,507,188.82 is: 2,261,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,112.80 : 4,182,403.76 = 1,507,188.82 : x
  2. Step 2: Convert to fraction form
    2,787,112.80/4,182,403.76 = 1,507,188.82/x
  3. Step 3: Cross multiply
    2,787,112.80x = 4,182,403.76 × 1,507,188.82
  4. Step 4: Simplify right side
    2,787,112.80x = 6,303,672,191,778.03
  5. Step 5: Solve for x
    x = 6,303,672,191,778.03/2,787,112.80
  6. Step 6: Final answer
    x = 2,261,721.23

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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.