Home / 864,388.32-1,296,775.13-265,401.69

Finding the Fourth Proportional to 864,388.32, 1,296,775.13 and 265,401.69

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Solution

The fourth proportional to 864,388.32, 1,296,775.13 and 265,401.69 is: 398,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,388.32 : 1,296,775.13 = 265,401.69 : x
  2. Step 2: Convert to fraction form
    864,388.32/1,296,775.13 = 265,401.69/x
  3. Step 3: Cross multiply
    864,388.32x = 1,296,775.13 × 265,401.69
  4. Step 4: Simplify right side
    864,388.32x = 344,166,311,051.97
  5. Step 5: Solve for x
    x = 344,166,311,051.97/864,388.32
  6. Step 6: Final answer
    x = 398,161.69

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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.