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Finding the Fourth Proportional to 494,889.60, 742,334.40 and 368,918.40

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Solution

The fourth proportional to 494,889.60, 742,334.40 and 368,918.40 is: 553,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,889.60 : 742,334.40 = 368,918.40 : x
  2. Step 2: Convert to fraction form
    494,889.60/742,334.40 = 368,918.40/x
  3. Step 3: Cross multiply
    494,889.60x = 742,334.40 × 368,918.40
  4. Step 4: Simplify right side
    494,889.60x = 273,860,819,112.96
  5. Step 5: Solve for x
    x = 273,860,819,112.96/494,889.60
  6. Step 6: Final answer
    x = 553,377.60

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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.