Home / 724,874.40-1,087,311.60-658,389.60

Finding the Fourth Proportional to 724,874.40, 1,087,311.60 and 658,389.60

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Solution

The fourth proportional to 724,874.40, 1,087,311.60 and 658,389.60 is: 987,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,874.40 : 1,087,311.60 = 658,389.60 : x
  2. Step 2: Convert to fraction form
    724,874.40/1,087,311.60 = 658,389.60/x
  3. Step 3: Cross multiply
    724,874.40x = 1,087,311.60 × 658,389.60
  4. Step 4: Simplify right side
    724,874.40x = 715,874,649,399.36
  5. Step 5: Solve for x
    x = 715,874,649,399.36/724,874.40
  6. Step 6: Final answer
    x = 987,584.40

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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.