Home / 1,001,779.80-1,382,664.96-921,079.44

Finding the Fourth Proportional to 1,001,779.80, 1,382,664.96 and 921,079.44

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Solution

The fourth proportional to 1,001,779.80, 1,382,664.96 and 921,079.44 is: 1,271,281.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,779.80 : 1,382,664.96 = 921,079.44 : x
  2. Step 2: Convert to fraction form
    1,001,779.80/1,382,664.96 = 921,079.44/x
  3. Step 3: Cross multiply
    1,001,779.80x = 1,382,664.96 × 921,079.44
  4. Step 4: Simplify right side
    1,001,779.80x = 1,273,544,267,064.42
  5. Step 5: Solve for x
    x = 1,273,544,267,064.42/1,001,779.80
  6. Step 6: Final answer
    x = 1,271,281.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.