Home / 986,799.77-1,361,794.83-578,908.55

Finding the Fourth Proportional to 986,799.77, 1,361,794.83 and 578,908.55

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Solution

The fourth proportional to 986,799.77, 1,361,794.83 and 578,908.55 is: 798,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,799.77 : 1,361,794.83 = 578,908.55 : x
  2. Step 2: Convert to fraction form
    986,799.77/1,361,794.83 = 578,908.55/x
  3. Step 3: Cross multiply
    986,799.77x = 1,361,794.83 × 578,908.55
  4. Step 4: Simplify right side
    986,799.77x = 788,354,670,432.80
  5. Step 5: Solve for x
    x = 788,354,670,432.80/986,799.77
  6. Step 6: Final answer
    x = 798,900.34

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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.