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Finding the Fourth Proportional to 463,485.84, 695,053.79 and 213,992.88

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Solution

The fourth proportional to 463,485.84, 695,053.79 and 213,992.88 is: 320,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,485.84 : 695,053.79 = 213,992.88 : x
  2. Step 2: Convert to fraction form
    463,485.84/695,053.79 = 213,992.88/x
  3. Step 3: Cross multiply
    463,485.84x = 695,053.79 × 213,992.88
  4. Step 4: Simplify right side
    463,485.84x = 148,736,562,277.02
  5. Step 5: Solve for x
    x = 148,736,562,277.02/463,485.84
  6. Step 6: Final answer
    x = 320,908.54

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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.