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Finding the Fourth Proportional to 660,481.02, 911,463.03 and 358,672.86

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Solution

The fourth proportional to 660,481.02, 911,463.03 and 358,672.86 is: 494,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,481.02 : 911,463.03 = 358,672.86 : x
  2. Step 2: Convert to fraction form
    660,481.02/911,463.03 = 358,672.86/x
  3. Step 3: Cross multiply
    660,481.02x = 911,463.03 × 358,672.86
  4. Step 4: Simplify right side
    660,481.02x = 326,917,051,754.37
  5. Step 5: Solve for x
    x = 326,917,051,754.37/660,481.02
  6. Step 6: Final answer
    x = 494,968.12

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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.