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Finding the Fourth Proportional to 450,306.76, 621,418.60 and 246,355.60

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Solution

The fourth proportional to 450,306.76, 621,418.60 and 246,355.60 is: 339,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,306.76 : 621,418.60 = 246,355.60 : x
  2. Step 2: Convert to fraction form
    450,306.76/621,418.60 = 246,355.60/x
  3. Step 3: Cross multiply
    450,306.76x = 621,418.60 × 246,355.60
  4. Step 4: Simplify right side
    450,306.76x = 153,089,952,054.16
  5. Step 5: Solve for x
    x = 153,089,952,054.16/450,306.76
  6. Step 6: Final answer
    x = 339,968.14

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1.5x scale

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.