Home / 690,416.60-1,036,013.70-269,637.80

Finding the Fourth Proportional to 690,416.60, 1,036,013.70 and 269,637.80

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Solution

The fourth proportional to 690,416.60, 1,036,013.70 and 269,637.80 is: 404,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,416.60 : 1,036,013.70 = 269,637.80 : x
  2. Step 2: Convert to fraction form
    690,416.60/1,036,013.70 = 269,637.80/x
  3. Step 3: Cross multiply
    690,416.60x = 1,036,013.70 × 269,637.80
  4. Step 4: Simplify right side
    690,416.60x = 279,348,454,837.86
  5. Step 5: Solve for x
    x = 279,348,454,837.86/690,416.60
  6. Step 6: Final answer
    x = 404,608.54

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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.