Home / 1,354,893.92-1,869,690.32-782,118.64

Finding the Fourth Proportional to 1,354,893.92, 1,869,690.32 and 782,118.64

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Solution

The fourth proportional to 1,354,893.92, 1,869,690.32 and 782,118.64 is: 1,079,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,893.92 : 1,869,690.32 = 782,118.64 : x
  2. Step 2: Convert to fraction form
    1,354,893.92/1,869,690.32 = 782,118.64/x
  3. Step 3: Cross multiply
    1,354,893.92x = 1,869,690.32 × 782,118.64
  4. Step 4: Simplify right side
    1,354,893.92x = 1,462,319,650,299.57
  5. Step 5: Solve for x
    x = 1,462,319,650,299.57/1,354,893.92
  6. Step 6: Final answer
    x = 1,079,287.19

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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.