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Finding the Fourth Proportional to 660,359.52, 911,310.72 and 369,992.44

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Solution

The fourth proportional to 660,359.52, 911,310.72 and 369,992.44 is: 510,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,359.52 : 911,310.72 = 369,992.44 : x
  2. Step 2: Convert to fraction form
    660,359.52/911,310.72 = 369,992.44/x
  3. Step 3: Cross multiply
    660,359.52x = 911,310.72 × 369,992.44
  4. Step 4: Simplify right side
    660,359.52x = 337,178,076,890.96
  5. Step 5: Solve for x
    x = 337,178,076,890.96/660,359.52
  6. Step 6: Final answer
    x = 510,597.74

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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.