Home / 826,734.01-1,239,618.36-320,703.69

Finding the Fourth Proportional to 826,734.01, 1,239,618.36 and 320,703.69

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Solution

The fourth proportional to 826,734.01, 1,239,618.36 and 320,703.69 is: 480,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,734.01 : 1,239,618.36 = 320,703.69 : x
  2. Step 2: Convert to fraction form
    826,734.01/1,239,618.36 = 320,703.69/x
  3. Step 3: Cross multiply
    826,734.01x = 1,239,618.36 × 320,703.69
  4. Step 4: Simplify right side
    826,734.01x = 397,550,182,243.75
  5. Step 5: Solve for x
    x = 397,550,182,243.75/826,734.01
  6. Step 6: Final answer
    x = 480,868.31

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1.5x scale

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.