Home / 1,321,361.01-1,981,779.08-647,152.65

Finding the Fourth Proportional to 1,321,361.01, 1,981,779.08 and 647,152.65

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Solution

The fourth proportional to 1,321,361.01, 1,981,779.08 and 647,152.65 is: 970,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,361.01 : 1,981,779.08 = 647,152.65 : x
  2. Step 2: Convert to fraction form
    1,321,361.01/1,981,779.08 = 647,152.65/x
  3. Step 3: Cross multiply
    1,321,361.01x = 1,981,779.08 × 647,152.65
  4. Step 4: Simplify right side
    1,321,361.01x = 1,282,513,580,100.80
  5. Step 5: Solve for x
    x = 1,282,513,580,100.80/1,321,361.01
  6. Step 6: Final answer
    x = 970,600.44

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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.