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Finding the Fourth Proportional to 978,040.80, 1,463,950.80 and 698,104.80

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Solution

The fourth proportional to 978,040.80, 1,463,950.80 and 698,104.80 is: 1,044,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,040.80 : 1,463,950.80 = 698,104.80 : x
  2. Step 2: Convert to fraction form
    978,040.80/1,463,950.80 = 698,104.80/x
  3. Step 3: Cross multiply
    978,040.80x = 1,463,950.80 × 698,104.80
  4. Step 4: Simplify right side
    978,040.80x = 1,021,991,080,443.84
  5. Step 5: Solve for x
    x = 1,021,991,080,443.84/978,040.80
  6. Step 6: Final answer
    x = 1,044,937.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.