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Finding the Fourth Proportional to 455,903.37, 683,243.73 and 354,823.47

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Solution

The fourth proportional to 455,903.37, 683,243.73 and 354,823.47 is: 531,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,903.37 : 683,243.73 = 354,823.47 : x
  2. Step 2: Convert to fraction form
    455,903.37/683,243.73 = 354,823.47/x
  3. Step 3: Cross multiply
    455,903.37x = 683,243.73 × 354,823.47
  4. Step 4: Simplify right side
    455,903.37x = 242,430,911,134.34
  5. Step 5: Solve for x
    x = 242,430,911,134.34/455,903.37
  6. Step 6: Final answer
    x = 531,759.42

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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.