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Finding the Fourth Proportional to 628,097.79, 942,515.64 and 228,762.48

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Solution

The fourth proportional to 628,097.79, 942,515.64 and 228,762.48 is: 343,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,097.79 : 942,515.64 = 228,762.48 : x
  2. Step 2: Convert to fraction form
    628,097.79/942,515.64 = 228,762.48/x
  3. Step 3: Cross multiply
    628,097.79x = 942,515.64 × 228,762.48
  4. Step 4: Simplify right side
    628,097.79x = 215,612,215,245.19
  5. Step 5: Solve for x
    x = 215,612,215,245.19/628,097.79
  6. Step 6: Final answer
    x = 343,278.10

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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.