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Finding the Fourth Proportional to 625,968, 863,880.48 and 354,038.40

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Solution

The fourth proportional to 625,968, 863,880.48 and 354,038.40 is: 488,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,968 : 863,880.48 = 354,038.40 : x
  2. Step 2: Convert to fraction form
    625,968/863,880.48 = 354,038.40/x
  3. Step 3: Cross multiply
    625,968x = 863,880.48 × 354,038.40
  4. Step 4: Simplify right side
    625,968x = 305,846,862,930.43
  5. Step 5: Solve for x
    x = 305,846,862,930.43/625,968
  6. Step 6: Final answer
    x = 488,598.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.