Home / 903,479.20-1,355,218.80-690,902.80

Finding the Fourth Proportional to 903,479.20, 1,355,218.80 and 690,902.80

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Solution

The fourth proportional to 903,479.20, 1,355,218.80 and 690,902.80 is: 1,036,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,479.20 : 1,355,218.80 = 690,902.80 : x
  2. Step 2: Convert to fraction form
    903,479.20/1,355,218.80 = 690,902.80/x
  3. Step 3: Cross multiply
    903,479.20x = 1,355,218.80 × 690,902.80
  4. Step 4: Simplify right side
    903,479.20x = 936,324,463,532.64
  5. Step 5: Solve for x
    x = 936,324,463,532.64/903,479.20
  6. Step 6: Final answer
    x = 1,036,354.20

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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.