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Finding the Fourth Proportional to 653,919.36, 902,413.44 and 367,440

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Solution

The fourth proportional to 653,919.36, 902,413.44 and 367,440 is: 507,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,919.36 : 902,413.44 = 367,440 : x
  2. Step 2: Convert to fraction form
    653,919.36/902,413.44 = 367,440/x
  3. Step 3: Cross multiply
    653,919.36x = 902,413.44 × 367,440
  4. Step 4: Simplify right side
    653,919.36x = 331,582,794,393.60
  5. Step 5: Solve for x
    x = 331,582,794,393.60/653,919.36
  6. Step 6: Final answer
    x = 507,069.85

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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.