Home / 1,397,307.70-2,095,961.55-511,189.30

Finding the Fourth Proportional to 1,397,307.70, 2,095,961.55 and 511,189.30

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Solution

The fourth proportional to 1,397,307.70, 2,095,961.55 and 511,189.30 is: 766,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,307.70 : 2,095,961.55 = 511,189.30 : x
  2. Step 2: Convert to fraction form
    1,397,307.70/2,095,961.55 = 511,189.30/x
  3. Step 3: Cross multiply
    1,397,307.70x = 2,095,961.55 × 511,189.30
  4. Step 4: Simplify right side
    1,397,307.70x = 1,071,433,117,571.42
  5. Step 5: Solve for x
    x = 1,071,433,117,571.42/1,397,307.70
  6. Step 6: Final answer
    x = 766,783.95

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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.