Home / 726,821.32-1,090,590.54-327,739.72

Finding the Fourth Proportional to 726,821.32, 1,090,590.54 and 327,739.72

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Solution

The fourth proportional to 726,821.32, 1,090,590.54 and 327,739.72 is: 491,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,821.32 : 1,090,590.54 = 327,739.72 : x
  2. Step 2: Convert to fraction form
    726,821.32/1,090,590.54 = 327,739.72/x
  3. Step 3: Cross multiply
    726,821.32x = 1,090,590.54 × 327,739.72
  4. Step 4: Simplify right side
    726,821.32x = 357,429,838,214.25
  5. Step 5: Solve for x
    x = 357,429,838,214.25/726,821.32
  6. Step 6: Final answer
    x = 491,771.26

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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.