Home / 2,778,699.72-4,167,466.37-783,689.16

Finding the Fourth Proportional to 2,778,699.72, 4,167,466.37 and 783,689.16

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Solution

The fourth proportional to 2,778,699.72, 4,167,466.37 and 783,689.16 is: 1,175,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,699.72 : 4,167,466.37 = 783,689.16 : x
  2. Step 2: Convert to fraction form
    2,778,699.72/4,167,466.37 = 783,689.16/x
  3. Step 3: Cross multiply
    2,778,699.72x = 4,167,466.37 × 783,689.16
  4. Step 4: Simplify right side
    2,778,699.72x = 3,265,998,218,833.55
  5. Step 5: Solve for x
    x = 3,265,998,218,833.55/2,778,699.72
  6. Step 6: Final answer
    x = 1,175,369.25

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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.