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Finding the Fourth Proportional to 698,504.16, 963,942.48 and 396,700.32

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Solution

The fourth proportional to 698,504.16, 963,942.48 and 396,700.32 is: 547,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,504.16 : 963,942.48 = 396,700.32 : x
  2. Step 2: Convert to fraction form
    698,504.16/963,942.48 = 396,700.32/x
  3. Step 3: Cross multiply
    698,504.16x = 963,942.48 × 396,700.32
  4. Step 4: Simplify right side
    698,504.16x = 382,396,290,277.59
  5. Step 5: Solve for x
    x = 382,396,290,277.59/698,504.16
  6. Step 6: Final answer
    x = 547,450.27

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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.