Home / 986,818.77-1,361,821.05-578,927.57

Finding the Fourth Proportional to 986,818.77, 1,361,821.05 and 578,927.57

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Solution

The fourth proportional to 986,818.77, 1,361,821.05 and 578,927.57 is: 798,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,818.77 : 1,361,821.05 = 578,927.57 : x
  2. Step 2: Convert to fraction form
    986,818.77/1,361,821.05 = 578,927.57/x
  3. Step 3: Cross multiply
    986,818.77x = 1,361,821.05 × 578,927.57
  4. Step 4: Simplify right side
    986,818.77x = 788,395,744,442.24
  5. Step 5: Solve for x
    x = 788,395,744,442.24/986,818.77
  6. Step 6: Final answer
    x = 798,926.58

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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.