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Finding the Fourth Proportional to 603,437.60, 902,823.60 and 393,485.60

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Solution

The fourth proportional to 603,437.60, 902,823.60 and 393,485.60 is: 588,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,437.60 : 902,823.60 = 393,485.60 : x
  2. Step 2: Convert to fraction form
    603,437.60/902,823.60 = 393,485.60/x
  3. Step 3: Cross multiply
    603,437.60x = 902,823.60 × 393,485.60
  4. Step 4: Simplify right side
    603,437.60x = 355,248,085,940.16
  5. Step 5: Solve for x
    x = 355,248,085,940.16/603,437.60
  6. Step 6: Final answer
    x = 588,707.24

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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.