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Finding the Fourth Proportional to 550,420.73, 759,258.02 and 346,147.64

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Solution

The fourth proportional to 550,420.73, 759,258.02 and 346,147.64 is: 477,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,420.73 : 759,258.02 = 346,147.64 : x
  2. Step 2: Convert to fraction form
    550,420.73/759,258.02 = 346,147.64/x
  3. Step 3: Cross multiply
    550,420.73x = 759,258.02 × 346,147.64
  4. Step 4: Simplify right side
    550,420.73x = 262,815,370,043.34
  5. Step 5: Solve for x
    x = 262,815,370,043.34/550,420.73
  6. Step 6: Final answer
    x = 477,480.87

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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.