Home / 855,860.80-1,283,445.60-294,606.40

Finding the Fourth Proportional to 855,860.80, 1,283,445.60 and 294,606.40

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Solution

The fourth proportional to 855,860.80, 1,283,445.60 and 294,606.40 is: 441,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,860.80 : 1,283,445.60 = 294,606.40 : x
  2. Step 2: Convert to fraction form
    855,860.80/1,283,445.60 = 294,606.40/x
  3. Step 3: Cross multiply
    855,860.80x = 1,283,445.60 × 294,606.40
  4. Step 4: Simplify right side
    855,860.80x = 378,111,287,811.84
  5. Step 5: Solve for x
    x = 378,111,287,811.84/855,860.80
  6. Step 6: Final answer
    x = 441,790.64

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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.