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Finding the Fourth Proportional to 978,038.80, 1,463,947.80 and 698,102.80

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Solution

The fourth proportional to 978,038.80, 1,463,947.80 and 698,102.80 is: 1,044,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,038.80 : 1,463,947.80 = 698,102.80 : x
  2. Step 2: Convert to fraction form
    978,038.80/1,463,947.80 = 698,102.80/x
  3. Step 3: Cross multiply
    978,038.80x = 1,463,947.80 × 698,102.80
  4. Step 4: Simplify right side
    978,038.80x = 1,021,986,058,233.84
  5. Step 5: Solve for x
    x = 1,021,986,058,233.84/978,038.80
  6. Step 6: Final answer
    x = 1,044,934.06

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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.