Home / 1,259,821.80-1,889,732.70-940,957.20

Finding the Fourth Proportional to 1,259,821.80, 1,889,732.70 and 940,957.20

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Solution

The fourth proportional to 1,259,821.80, 1,889,732.70 and 940,957.20 is: 1,411,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,821.80 : 1,889,732.70 = 940,957.20 : x
  2. Step 2: Convert to fraction form
    1,259,821.80/1,889,732.70 = 940,957.20/x
  3. Step 3: Cross multiply
    1,259,821.80x = 1,889,732.70 × 940,957.20
  4. Step 4: Simplify right side
    1,259,821.80x = 1,778,157,590,140.44
  5. Step 5: Solve for x
    x = 1,778,157,590,140.44/1,259,821.80
  6. Step 6: Final answer
    x = 1,411,435.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.