Home / 816,879-1,126,111.26-540,774.18

Finding the Fourth Proportional to 816,879, 1,126,111.26 and 540,774.18

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Solution

The fourth proportional to 816,879, 1,126,111.26 and 540,774.18 is: 745,486.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,879 : 1,126,111.26 = 540,774.18 : x
  2. Step 2: Convert to fraction form
    816,879/1,126,111.26 = 540,774.18/x
  3. Step 3: Cross multiply
    816,879x = 1,126,111.26 × 540,774.18
  4. Step 4: Simplify right side
    816,879x = 608,971,893,215.27
  5. Step 5: Solve for x
    x = 608,971,893,215.27/816,879
  6. Step 6: Final answer
    x = 745,486.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.