Home / 1,678,440.80-2,517,678.66-1,343,609.89

Finding the Fourth Proportional to 1,678,440.80, 2,517,678.66 and 1,343,609.89

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Solution

The fourth proportional to 1,678,440.80, 2,517,678.66 and 1,343,609.89 is: 2,015,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,440.80 : 2,517,678.66 = 1,343,609.89 : x
  2. Step 2: Convert to fraction form
    1,678,440.80/2,517,678.66 = 1,343,609.89/x
  3. Step 3: Cross multiply
    1,678,440.80x = 2,517,678.66 × 1,343,609.89
  4. Step 4: Simplify right side
    1,678,440.80x = 3,382,777,934,829.55
  5. Step 5: Solve for x
    x = 3,382,777,934,829.55/1,678,440.80
  6. Step 6: Final answer
    x = 2,015,428.80

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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.