Home / 816,561.16-1,126,917.46-489,886.44

Finding the Fourth Proportional to 816,561.16, 1,126,917.46 and 489,886.44

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Solution

The fourth proportional to 816,561.16, 1,126,917.46 and 489,886.44 is: 676,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,561.16 : 1,126,917.46 = 489,886.44 : x
  2. Step 2: Convert to fraction form
    816,561.16/1,126,917.46 = 489,886.44/x
  3. Step 3: Cross multiply
    816,561.16x = 1,126,917.46 × 489,886.44
  4. Step 4: Simplify right side
    816,561.16x = 552,061,582,653.24
  5. Step 5: Solve for x
    x = 552,061,582,653.24/816,561.16
  6. Step 6: Final answer
    x = 676,081.12

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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.