Home / 3,388,779.20-5,083,136.40-830,005.40

Finding the Fourth Proportional to 3,388,779.20, 5,083,136.40 and 830,005.40

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Solution

The fourth proportional to 3,388,779.20, 5,083,136.40 and 830,005.40 is: 1,245,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388,779.20 : 5,083,136.40 = 830,005.40 : x
  2. Step 2: Convert to fraction form
    3,388,779.20/5,083,136.40 = 830,005.40/x
  3. Step 3: Cross multiply
    3,388,779.20x = 5,083,136.40 × 830,005.40
  4. Step 4: Simplify right side
    3,388,779.20x = 4,219,030,660,936.56
  5. Step 5: Solve for x
    x = 4,219,030,660,936.56/3,388,779.20
  6. Step 6: Final answer
    x = 1,245,000.16

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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.