Home / 2,138,096.39-3,207,117.81-518,878.64

Finding the Fourth Proportional to 2,138,096.39, 3,207,117.81 and 518,878.64

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Solution

The fourth proportional to 2,138,096.39, 3,207,117.81 and 518,878.64 is: 778,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,096.39 : 3,207,117.81 = 518,878.64 : x
  2. Step 2: Convert to fraction form
    2,138,096.39/3,207,117.81 = 518,878.64/x
  3. Step 3: Cross multiply
    2,138,096.39x = 3,207,117.81 × 518,878.64
  4. Step 4: Simplify right side
    2,138,096.39x = 1,664,104,911,536.99
  5. Step 5: Solve for x
    x = 1,664,104,911,536.99/2,138,096.39
  6. Step 6: Final answer
    x = 778,311.46

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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.