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Finding the Fourth Proportional to 611,969.69, 917,298.25 and 295,991.93

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Solution

The fourth proportional to 611,969.69, 917,298.25 and 295,991.93 is: 443,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,969.69 : 917,298.25 = 295,991.93 : x
  2. Step 2: Convert to fraction form
    611,969.69/917,298.25 = 295,991.93/x
  3. Step 3: Cross multiply
    611,969.69x = 917,298.25 × 295,991.93
  4. Step 4: Simplify right side
    611,969.69x = 271,512,879,403.12
  5. Step 5: Solve for x
    x = 271,512,879,403.12/611,969.69
  6. Step 6: Final answer
    x = 443,670.47

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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.