Home / 685,536.64-1,028,598.64-265,107.76

Finding the Fourth Proportional to 685,536.64, 1,028,598.64 and 265,107.76

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Solution

The fourth proportional to 685,536.64, 1,028,598.64 and 265,107.76 is: 397,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,536.64 : 1,028,598.64 = 265,107.76 : x
  2. Step 2: Convert to fraction form
    685,536.64/1,028,598.64 = 265,107.76/x
  3. Step 3: Cross multiply
    685,536.64x = 1,028,598.64 × 265,107.76
  4. Step 4: Simplify right side
    685,536.64x = 272,689,481,389.45
  5. Step 5: Solve for x
    x = 272,689,481,389.45/685,536.64
  6. Step 6: Final answer
    x = 397,775.21

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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.