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Finding the Fourth Proportional to 529,511.99, 730,732.23 and 287,794.58

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Solution

The fourth proportional to 529,511.99, 730,732.23 and 287,794.58 is: 397,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,511.99 : 730,732.23 = 287,794.58 : x
  2. Step 2: Convert to fraction form
    529,511.99/730,732.23 = 287,794.58/x
  3. Step 3: Cross multiply
    529,511.99x = 730,732.23 × 287,794.58
  4. Step 4: Simplify right side
    529,511.99x = 210,300,771,571.65
  5. Step 5: Solve for x
    x = 210,300,771,571.65/529,511.99
  6. Step 6: Final answer
    x = 397,159.60

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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.