Home / 1,040,404.60-1,558,857.30-685,235.80

Finding the Fourth Proportional to 1,040,404.60, 1,558,857.30 and 685,235.80

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Solution

The fourth proportional to 1,040,404.60, 1,558,857.30 and 685,235.80 is: 1,026,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,404.60 : 1,558,857.30 = 685,235.80 : x
  2. Step 2: Convert to fraction form
    1,040,404.60/1,558,857.30 = 685,235.80/x
  3. Step 3: Cross multiply
    1,040,404.60x = 1,558,857.30 × 685,235.80
  4. Step 4: Simplify right side
    1,040,404.60x = 1,068,184,829,051.34
  5. Step 5: Solve for x
    x = 1,068,184,829,051.34/1,040,404.60
  6. Step 6: Final answer
    x = 1,026,701.37

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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.