Home / 2,128,811.18-3,190,444.38-865,161.50

Finding the Fourth Proportional to 2,128,811.18, 3,190,444.38 and 865,161.50

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Solution

The fourth proportional to 2,128,811.18, 3,190,444.38 and 865,161.50 is: 1,296,615.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,811.18 : 3,190,444.38 = 865,161.50 : x
  2. Step 2: Convert to fraction form
    2,128,811.18/3,190,444.38 = 865,161.50/x
  3. Step 3: Cross multiply
    2,128,811.18x = 3,190,444.38 × 865,161.50
  4. Step 4: Simplify right side
    2,128,811.18x = 2,760,249,645,467.37
  5. Step 5: Solve for x
    x = 2,760,249,645,467.37/2,128,811.18
  6. Step 6: Final answer
    x = 1,296,615.53

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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.