Home / 771,804.68-1,065,093.72-449,735.72

Finding the Fourth Proportional to 771,804.68, 1,065,093.72 and 449,735.72

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Solution

The fourth proportional to 771,804.68, 1,065,093.72 and 449,735.72 is: 620,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,804.68 : 1,065,093.72 = 449,735.72 : x
  2. Step 2: Convert to fraction form
    771,804.68/1,065,093.72 = 449,735.72/x
  3. Step 3: Cross multiply
    771,804.68x = 1,065,093.72 × 449,735.72
  4. Step 4: Simplify right side
    771,804.68x = 479,010,691,031.68
  5. Step 5: Solve for x
    x = 479,010,691,031.68/771,804.68
  6. Step 6: Final answer
    x = 620,637.19

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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.