Home / 986,798.77-1,361,793.45-578,907.55

Finding the Fourth Proportional to 986,798.77, 1,361,793.45 and 578,907.55

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Solution

The fourth proportional to 986,798.77, 1,361,793.45 and 578,907.55 is: 798,898.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,798.77 : 1,361,793.45 = 578,907.55 : x
  2. Step 2: Convert to fraction form
    986,798.77/1,361,793.45 = 578,907.55/x
  3. Step 3: Cross multiply
    986,798.77x = 1,361,793.45 × 578,907.55
  4. Step 4: Simplify right side
    986,798.77x = 788,352,509,745.55
  5. Step 5: Solve for x
    x = 788,352,509,745.55/986,798.77
  6. Step 6: Final answer
    x = 798,898.96

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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.