Home / 1,118,969.30-1,678,672.65-479,271.80

Finding the Fourth Proportional to 1,118,969.30, 1,678,672.65 and 479,271.80

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Solution

The fourth proportional to 1,118,969.30, 1,678,672.65 and 479,271.80 is: 719,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,969.30 : 1,678,672.65 = 479,271.80 : x
  2. Step 2: Convert to fraction form
    1,118,969.30/1,678,672.65 = 479,271.80/x
  3. Step 3: Cross multiply
    1,118,969.30x = 1,678,672.65 × 479,271.80
  4. Step 4: Simplify right side
    1,118,969.30x = 804,540,462,576.27
  5. Step 5: Solve for x
    x = 804,540,462,576.27/1,118,969.30
  6. Step 6: Final answer
    x = 719,001.37

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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.