Home / 986,821.56-1,361,826-578,902.32

Finding the Fourth Proportional to 986,821.56, 1,361,826 and 578,902.32

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Solution

The fourth proportional to 986,821.56, 1,361,826 and 578,902.32 is: 798,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,821.56 : 1,361,826 = 578,902.32 : x
  2. Step 2: Convert to fraction form
    986,821.56/1,361,826 = 578,902.32/x
  3. Step 3: Cross multiply
    986,821.56x = 1,361,826 × 578,902.32
  4. Step 4: Simplify right side
    986,821.56x = 788,364,230,836.32
  5. Step 5: Solve for x
    x = 788,364,230,836.32/986,821.56
  6. Step 6: Final answer
    x = 798,892.39

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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.