Home / 816,579.12-1,126,942.32-489,904.44

Finding the Fourth Proportional to 816,579.12, 1,126,942.32 and 489,904.44

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Solution

The fourth proportional to 816,579.12, 1,126,942.32 and 489,904.44 is: 676,106.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,579.12 : 1,126,942.32 = 489,904.44 : x
  2. Step 2: Convert to fraction form
    816,579.12/1,126,942.32 = 489,904.44/x
  3. Step 3: Cross multiply
    816,579.12x = 1,126,942.32 × 489,904.44
  4. Step 4: Simplify right side
    816,579.12x = 552,094,046,191.90
  5. Step 5: Solve for x
    x = 552,094,046,191.90/816,579.12
  6. Step 6: Final answer
    x = 676,106.00

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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.