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Finding the Fourth Proportional to 555,475.60, 831,107.40 and 368,851.60

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Solution

The fourth proportional to 555,475.60, 831,107.40 and 368,851.60 is: 551,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,475.60 : 831,107.40 = 368,851.60 : x
  2. Step 2: Convert to fraction form
    555,475.60/831,107.40 = 368,851.60/x
  3. Step 3: Cross multiply
    555,475.60x = 831,107.40 × 368,851.60
  4. Step 4: Simplify right side
    555,475.60x = 306,555,294,261.84
  5. Step 5: Solve for x
    x = 306,555,294,261.84/555,475.60
  6. Step 6: Final answer
    x = 551,878.96

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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.