Home / 1,929,779.58-2,891,015.66-1,288,148.62

Finding the Fourth Proportional to 1,929,779.58, 2,891,015.66 and 1,288,148.62

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Solution

The fourth proportional to 1,929,779.58, 2,891,015.66 and 1,288,148.62 is: 1,929,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,779.58 : 2,891,015.66 = 1,288,148.62 : x
  2. Step 2: Convert to fraction form
    1,929,779.58/2,891,015.66 = 1,288,148.62/x
  3. Step 3: Cross multiply
    1,929,779.58x = 2,891,015.66 × 1,288,148.62
  4. Step 4: Simplify right side
    1,929,779.58x = 3,724,057,832,827.39
  5. Step 5: Solve for x
    x = 3,724,057,832,827.39/1,929,779.58
  6. Step 6: Final answer
    x = 1,929,784.04

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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.