Home / 1,343,816.80-2,016,308.40-678,968.80

Finding the Fourth Proportional to 1,343,816.80, 2,016,308.40 and 678,968.80

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Solution

The fourth proportional to 1,343,816.80, 2,016,308.40 and 678,968.80 is: 1,018,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,816.80 : 2,016,308.40 = 678,968.80 : x
  2. Step 2: Convert to fraction form
    1,343,816.80/2,016,308.40 = 678,968.80/x
  3. Step 3: Cross multiply
    1,343,816.80x = 2,016,308.40 × 678,968.80
  4. Step 4: Simplify right side
    1,343,816.80x = 1,369,010,494,777.92
  5. Step 5: Solve for x
    x = 1,369,010,494,777.92/1,343,816.80
  6. Step 6: Final answer
    x = 1,018,747.86

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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.