Home / 989,353.02-1,363,818.83-774,119.42

Finding the Fourth Proportional to 989,353.02, 1,363,818.83 and 774,119.42

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Solution

The fourth proportional to 989,353.02, 1,363,818.83 and 774,119.42 is: 1,067,120.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,353.02 : 1,363,818.83 = 774,119.42 : x
  2. Step 2: Convert to fraction form
    989,353.02/1,363,818.83 = 774,119.42/x
  3. Step 3: Cross multiply
    989,353.02x = 1,363,818.83 × 774,119.42
  4. Step 4: Simplify right side
    989,353.02x = 1,055,758,641,664.68
  5. Step 5: Solve for x
    x = 1,055,758,641,664.68/989,353.02
  6. Step 6: Final answer
    x = 1,067,120.25

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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.