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Finding the Fourth Proportional to 690,200.04, 952,464.72 and 388,394.04

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Solution

The fourth proportional to 690,200.04, 952,464.72 and 388,394.04 is: 535,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,200.04 : 952,464.72 = 388,394.04 : x
  2. Step 2: Convert to fraction form
    690,200.04/952,464.72 = 388,394.04/x
  3. Step 3: Cross multiply
    690,200.04x = 952,464.72 × 388,394.04
  4. Step 4: Simplify right side
    690,200.04x = 369,931,620,558.27
  5. Step 5: Solve for x
    x = 369,931,620,558.27/690,200.04
  6. Step 6: Final answer
    x = 535,977.40

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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.