Home / 3,118,384.50-4,303,370.64-1,687,600.50

Finding the Fourth Proportional to 3,118,384.50, 4,303,370.64 and 1,687,600.50

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Solution

The fourth proportional to 3,118,384.50, 4,303,370.64 and 1,687,600.50 is: 2,328,888.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,384.50 : 4,303,370.64 = 1,687,600.50 : x
  2. Step 2: Convert to fraction form
    3,118,384.50/4,303,370.64 = 1,687,600.50/x
  3. Step 3: Cross multiply
    3,118,384.50x = 4,303,370.64 × 1,687,600.50
  4. Step 4: Simplify right side
    3,118,384.50x = 7,262,370,443,749.32
  5. Step 5: Solve for x
    x = 7,262,370,443,749.32/3,118,384.50
  6. Step 6: Final answer
    x = 2,328,888.71

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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.