Home / 3,118,390.56-4,303,378.92-1,687,606.56

Finding the Fourth Proportional to 3,118,390.56, 4,303,378.92 and 1,687,606.56

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Solution

The fourth proportional to 3,118,390.56, 4,303,378.92 and 1,687,606.56 is: 2,328,897.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,390.56 : 4,303,378.92 = 1,687,606.56 : x
  2. Step 2: Convert to fraction form
    3,118,390.56/4,303,378.92 = 1,687,606.56/x
  3. Step 3: Cross multiply
    3,118,390.56x = 4,303,378.92 × 1,687,606.56
  4. Step 4: Simplify right side
    3,118,390.56x = 7,262,410,495,557.72
  5. Step 5: Solve for x
    x = 7,262,410,495,557.72/3,118,390.56
  6. Step 6: Final answer
    x = 2,328,897.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.