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Finding the Fourth Proportional to 718,651.86, 1,078,725.47 and 529,326

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Solution

The fourth proportional to 718,651.86, 1,078,725.47 and 529,326 is: 794,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,651.86 : 1,078,725.47 = 529,326 : x
  2. Step 2: Convert to fraction form
    718,651.86/1,078,725.47 = 529,326/x
  3. Step 3: Cross multiply
    718,651.86x = 1,078,725.47 × 529,326
  4. Step 4: Simplify right side
    718,651.86x = 570,997,435,486.59
  5. Step 5: Solve for x
    x = 570,997,435,486.59/718,651.86
  6. Step 6: Final answer
    x = 794,539.70

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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.