Home / 1,489,729.61-2,234,816.76-691,091.89

Finding the Fourth Proportional to 1,489,729.61, 2,234,816.76 and 691,091.89

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Solution

The fourth proportional to 1,489,729.61, 2,234,816.76 and 691,091.89 is: 1,036,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,729.61 : 2,234,816.76 = 691,091.89 : x
  2. Step 2: Convert to fraction form
    1,489,729.61/2,234,816.76 = 691,091.89/x
  3. Step 3: Cross multiply
    1,489,729.61x = 2,234,816.76 × 691,091.89
  4. Step 4: Simplify right side
    1,489,729.61x = 1,544,463,738,472.08
  5. Step 5: Solve for x
    x = 1,544,463,738,472.08/1,489,729.61
  6. Step 6: Final answer
    x = 1,036,740.98

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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.