Home / 915,788.48-1,263,863.75-508,021.79

Finding the Fourth Proportional to 915,788.48, 1,263,863.75 and 508,021.79

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Solution

The fourth proportional to 915,788.48, 1,263,863.75 and 508,021.79 is: 701,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,788.48 : 1,263,863.75 = 508,021.79 : x
  2. Step 2: Convert to fraction form
    915,788.48/1,263,863.75 = 508,021.79/x
  3. Step 3: Cross multiply
    915,788.48x = 1,263,863.75 × 508,021.79
  4. Step 4: Simplify right side
    915,788.48x = 642,070,315,731.69
  5. Step 5: Solve for x
    x = 642,070,315,731.69/915,788.48
  6. Step 6: Final answer
    x = 701,112.03

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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.