Home / 679,024.07-1,019,400.38-440,137.60

Finding the Fourth Proportional to 679,024.07, 1,019,400.38 and 440,137.60

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Solution

The fourth proportional to 679,024.07, 1,019,400.38 and 440,137.60 is: 660,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,024.07 : 1,019,400.38 = 440,137.60 : x
  2. Step 2: Convert to fraction form
    679,024.07/1,019,400.38 = 440,137.60/x
  3. Step 3: Cross multiply
    679,024.07x = 1,019,400.38 × 440,137.60
  4. Step 4: Simplify right side
    679,024.07x = 448,676,435,244.13
  5. Step 5: Solve for x
    x = 448,676,435,244.13/679,024.07
  6. Step 6: Final answer
    x = 660,766.61

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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.