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Finding the Fourth Proportional to 649,308.40, 973,300.20 and 438,967.60

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Solution

The fourth proportional to 649,308.40, 973,300.20 and 438,967.60 is: 658,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,308.40 : 973,300.20 = 438,967.60 : x
  2. Step 2: Convert to fraction form
    649,308.40/973,300.20 = 438,967.60/x
  3. Step 3: Cross multiply
    649,308.40x = 973,300.20 × 438,967.60
  4. Step 4: Simplify right side
    649,308.40x = 427,247,252,873.52
  5. Step 5: Solve for x
    x = 427,247,252,873.52/649,308.40
  6. Step 6: Final answer
    x = 658,003.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.