Home / 891,015.78-1,336,456.49-283,779.59

Finding the Fourth Proportional to 891,015.78, 1,336,456.49 and 283,779.59

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Solution

The fourth proportional to 891,015.78, 1,336,456.49 and 283,779.59 is: 425,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,015.78 : 1,336,456.49 = 283,779.59 : x
  2. Step 2: Convert to fraction form
    891,015.78/1,336,456.49 = 283,779.59/x
  3. Step 3: Cross multiply
    891,015.78x = 1,336,456.49 × 283,779.59
  4. Step 4: Simplify right side
    891,015.78x = 379,259,074,785.04
  5. Step 5: Solve for x
    x = 379,259,074,785.04/891,015.78
  6. Step 6: Final answer
    x = 425,647.99

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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.