Home / 1,042,495.80-1,561,119.30-685,577.40

Finding the Fourth Proportional to 1,042,495.80, 1,561,119.30 and 685,577.40

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Solution

The fourth proportional to 1,042,495.80, 1,561,119.30 and 685,577.40 is: 1,026,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,495.80 : 1,561,119.30 = 685,577.40 : x
  2. Step 2: Convert to fraction form
    1,042,495.80/1,561,119.30 = 685,577.40/x
  3. Step 3: Cross multiply
    1,042,495.80x = 1,561,119.30 × 685,577.40
  4. Step 4: Simplify right side
    1,042,495.80x = 1,070,268,110,783.82
  5. Step 5: Solve for x
    x = 1,070,268,110,783.82/1,042,495.80
  6. Step 6: Final answer
    x = 1,026,640.21

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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.