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Finding the Fourth Proportional to 627,616.86, 866,090.07 and 359,293.02

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Solution

The fourth proportional to 627,616.86, 866,090.07 and 359,293.02 is: 495,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,616.86 : 866,090.07 = 359,293.02 : x
  2. Step 2: Convert to fraction form
    627,616.86/866,090.07 = 359,293.02/x
  3. Step 3: Cross multiply
    627,616.86x = 866,090.07 × 359,293.02
  4. Step 4: Simplify right side
    627,616.86x = 311,180,116,842.31
  5. Step 5: Solve for x
    x = 311,180,116,842.31/627,616.86
  6. Step 6: Final answer
    x = 495,812.23

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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.