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Finding the Fourth Proportional to 611,967.69, 917,295.26 and 295,989.93

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Solution

The fourth proportional to 611,967.69, 917,295.26 and 295,989.93 is: 443,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,967.69 : 917,295.26 = 295,989.93 : x
  2. Step 2: Convert to fraction form
    611,967.69/917,295.26 = 295,989.93/x
  3. Step 3: Cross multiply
    611,967.69x = 917,295.26 × 295,989.93
  4. Step 4: Simplify right side
    611,967.69x = 271,510,158,316.78
  5. Step 5: Solve for x
    x = 271,510,158,316.78/611,967.69
  6. Step 6: Final answer
    x = 443,667.47

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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.