Home / 725,357.45-1,001,085.33-438,879.89

Finding the Fourth Proportional to 725,357.45, 1,001,085.33 and 438,879.89

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Solution

The fourth proportional to 725,357.45, 1,001,085.33 and 438,879.89 is: 605,709.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,357.45 : 1,001,085.33 = 438,879.89 : x
  2. Step 2: Convert to fraction form
    725,357.45/1,001,085.33 = 438,879.89/x
  3. Step 3: Cross multiply
    725,357.45x = 1,001,085.33 × 438,879.89
  4. Step 4: Simplify right side
    725,357.45x = 439,356,219,511.01
  5. Step 5: Solve for x
    x = 439,356,219,511.01/725,357.45
  6. Step 6: Final answer
    x = 605,709.94

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1.5x scale

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.