Home / 690,893.68-1,036,340.54-269,874.32

Finding the Fourth Proportional to 690,893.68, 1,036,340.54 and 269,874.32

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Solution

The fourth proportional to 690,893.68, 1,036,340.54 and 269,874.32 is: 404,811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,893.68 : 1,036,340.54 = 269,874.32 : x
  2. Step 2: Convert to fraction form
    690,893.68/1,036,340.54 = 269,874.32/x
  3. Step 3: Cross multiply
    690,893.68x = 1,036,340.54 × 269,874.32
  4. Step 4: Simplify right side
    690,893.68x = 279,681,698,520.93
  5. Step 5: Solve for x
    x = 279,681,698,520.93/690,893.68
  6. Step 6: Final answer
    x = 404,811.49

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1.5x scale

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.