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Finding the Fourth Proportional to 424,942.40, 637,413.60 and 400,010.60

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Solution

The fourth proportional to 424,942.40, 637,413.60 and 400,010.60 is: 600,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,942.40 : 637,413.60 = 400,010.60 : x
  2. Step 2: Convert to fraction form
    424,942.40/637,413.60 = 400,010.60/x
  3. Step 3: Cross multiply
    424,942.40x = 637,413.60 × 400,010.60
  4. Step 4: Simplify right side
    424,942.40x = 254,972,196,584.16
  5. Step 5: Solve for x
    x = 254,972,196,584.16/424,942.40
  6. Step 6: Final answer
    x = 600,015.90

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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.