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Finding the Fourth Proportional to 607,339.30, 909,241 and 318,465.94

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Solution

The fourth proportional to 607,339.30, 909,241 and 318,465.94 is: 476,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,339.30 : 909,241 = 318,465.94 : x
  2. Step 2: Convert to fraction form
    607,339.30/909,241 = 318,465.94/x
  3. Step 3: Cross multiply
    607,339.30x = 909,241 × 318,465.94
  4. Step 4: Simplify right side
    607,339.30x = 289,562,289,751.54
  5. Step 5: Solve for x
    x = 289,562,289,751.54/607,339.30
  6. Step 6: Final answer
    x = 476,771.86

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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.