Home / 720,878.26-1,081,481.64-383,741.28

Finding the Fourth Proportional to 720,878.26, 1,081,481.64 and 383,741.28

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Solution

The fourth proportional to 720,878.26, 1,081,481.64 and 383,741.28 is: 575,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,878.26 : 1,081,481.64 = 383,741.28 : x
  2. Step 2: Convert to fraction form
    720,878.26/1,081,481.64 = 383,741.28/x
  3. Step 3: Cross multiply
    720,878.26x = 1,081,481.64 × 383,741.28
  4. Step 4: Simplify right side
    720,878.26x = 415,009,148,830.10
  5. Step 5: Solve for x
    x = 415,009,148,830.10/720,878.26
  6. Step 6: Final answer
    x = 575,699.35

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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.