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Finding the Fourth Proportional to 866,967.23, 1,300,128.23 and 298,188.68

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Solution

The fourth proportional to 866,967.23, 1,300,128.23 and 298,188.68 is: 447,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,967.23 : 1,300,128.23 = 298,188.68 : x
  2. Step 2: Convert to fraction form
    866,967.23/1,300,128.23 = 298,188.68/x
  3. Step 3: Cross multiply
    866,967.23x = 1,300,128.23 × 298,188.68
  4. Step 4: Simplify right side
    866,967.23x = 387,683,514,979.27
  5. Step 5: Solve for x
    x = 387,683,514,979.27/866,967.23
  6. Step 6: Final answer
    x = 447,172.05

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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.