Home / 1,323,451.80-1,979,928.90-1,147,908.60

Finding the Fourth Proportional to 1,323,451.80, 1,979,928.90 and 1,147,908.60

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Solution

The fourth proportional to 1,323,451.80, 1,979,928.90 and 1,147,908.60 is: 1,717,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,451.80 : 1,979,928.90 = 1,147,908.60 : x
  2. Step 2: Convert to fraction form
    1,323,451.80/1,979,928.90 = 1,147,908.60/x
  3. Step 3: Cross multiply
    1,323,451.80x = 1,979,928.90 × 1,147,908.60
  4. Step 4: Simplify right side
    1,323,451.80x = 2,272,777,411,698.54
  5. Step 5: Solve for x
    x = 2,272,777,411,698.54/1,323,451.80
  6. Step 6: Final answer
    x = 1,717,310.30

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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.