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Finding the Fourth Proportional to 615,289.53, 849,099.60 and 339,647.46

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Solution

The fourth proportional to 615,289.53, 849,099.60 and 339,647.46 is: 468,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,289.53 : 849,099.60 = 339,647.46 : x
  2. Step 2: Convert to fraction form
    615,289.53/849,099.60 = 339,647.46/x
  3. Step 3: Cross multiply
    615,289.53x = 849,099.60 × 339,647.46
  4. Step 4: Simplify right side
    615,289.53x = 288,394,522,427.02
  5. Step 5: Solve for x
    x = 288,394,522,427.02/615,289.53
  6. Step 6: Final answer
    x = 468,713.52

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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.