Home / 1,151,085.90-1,588,498.59-641,788.38

Finding the Fourth Proportional to 1,151,085.90, 1,588,498.59 and 641,788.38

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Solution

The fourth proportional to 1,151,085.90, 1,588,498.59 and 641,788.38 is: 885,667.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,085.90 : 1,588,498.59 = 641,788.38 : x
  2. Step 2: Convert to fraction form
    1,151,085.90/1,588,498.59 = 641,788.38/x
  3. Step 3: Cross multiply
    1,151,085.90x = 1,588,498.59 × 641,788.38
  4. Step 4: Simplify right side
    1,151,085.90x = 1,019,479,936,708.38
  5. Step 5: Solve for x
    x = 1,019,479,936,708.38/1,151,085.90
  6. Step 6: Final answer
    x = 885,667.99

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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.