Home / 1,111,512.80-1,668,046.80-480,879.20

Finding the Fourth Proportional to 1,111,512.80, 1,668,046.80 and 480,879.20

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Solution

The fourth proportional to 1,111,512.80, 1,668,046.80 and 480,879.20 is: 721,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,512.80 : 1,668,046.80 = 480,879.20 : x
  2. Step 2: Convert to fraction form
    1,111,512.80/1,668,046.80 = 480,879.20/x
  3. Step 3: Cross multiply
    1,111,512.80x = 1,668,046.80 × 480,879.20
  4. Step 4: Simplify right side
    1,111,512.80x = 802,129,010,746.56
  5. Step 5: Solve for x
    x = 802,129,010,746.56/1,111,512.80
  6. Step 6: Final answer
    x = 721,655.22

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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.