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Finding the Fourth Proportional to 494,881.60, 742,322.40 and 368,910.40

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Solution

The fourth proportional to 494,881.60, 742,322.40 and 368,910.40 is: 553,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,881.60 : 742,322.40 = 368,910.40 : x
  2. Step 2: Convert to fraction form
    494,881.60/742,322.40 = 368,910.40/x
  3. Step 3: Cross multiply
    494,881.60x = 742,322.40 × 368,910.40
  4. Step 4: Simplify right side
    494,881.60x = 273,850,453,512.96
  5. Step 5: Solve for x
    x = 273,850,453,512.96/494,881.60
  6. Step 6: Final answer
    x = 553,365.60

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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.