Home / 720,876.26-1,081,478.64-383,739.27

Finding the Fourth Proportional to 720,876.26, 1,081,478.64 and 383,739.27

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Solution

The fourth proportional to 720,876.26, 1,081,478.64 and 383,739.27 is: 575,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,876.26 : 1,081,478.64 = 383,739.27 : x
  2. Step 2: Convert to fraction form
    720,876.26/1,081,478.64 = 383,739.27/x
  3. Step 3: Cross multiply
    720,876.26x = 1,081,478.64 × 383,739.27
  4. Step 4: Simplify right side
    720,876.26x = 415,005,825,142.45
  5. Step 5: Solve for x
    x = 415,005,825,142.45/720,876.26
  6. Step 6: Final answer
    x = 575,696.34

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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.