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Finding the Fourth Proportional to 606,466.40, 909,699.60 and 340,413.80

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Solution

The fourth proportional to 606,466.40, 909,699.60 and 340,413.80 is: 510,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,466.40 : 909,699.60 = 340,413.80 : x
  2. Step 2: Convert to fraction form
    606,466.40/909,699.60 = 340,413.80/x
  3. Step 3: Cross multiply
    606,466.40x = 909,699.60 × 340,413.80
  4. Step 4: Simplify right side
    606,466.40x = 309,674,297,694.48
  5. Step 5: Solve for x
    x = 309,674,297,694.48/606,466.40
  6. Step 6: Final answer
    x = 510,620.70

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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.