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Finding the Fourth Proportional to 788,322, 1,087,884.07 and 425,745.93

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Solution

The fourth proportional to 788,322, 1,087,884.07 and 425,745.93 is: 587,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,322 : 1,087,884.07 = 425,745.93 : x
  2. Step 2: Convert to fraction form
    788,322/1,087,884.07 = 425,745.93/x
  3. Step 3: Cross multiply
    788,322x = 1,087,884.07 × 425,745.93
  4. Step 4: Simplify right side
    788,322x = 463,162,215,114.34
  5. Step 5: Solve for x
    x = 463,162,215,114.34/788,322
  6. Step 6: Final answer
    x = 587,529.23

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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.