Home / 1,628,505.40-2,442,758.10-1,387,060.60

Finding the Fourth Proportional to 1,628,505.40, 2,442,758.10 and 1,387,060.60

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Solution

The fourth proportional to 1,628,505.40, 2,442,758.10 and 1,387,060.60 is: 2,080,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,505.40 : 2,442,758.10 = 1,387,060.60 : x
  2. Step 2: Convert to fraction form
    1,628,505.40/2,442,758.10 = 1,387,060.60/x
  3. Step 3: Cross multiply
    1,628,505.40x = 2,442,758.10 × 1,387,060.60
  4. Step 4: Simplify right side
    1,628,505.40x = 3,388,253,515,840.86
  5. Step 5: Solve for x
    x = 3,388,253,515,840.86/1,628,505.40
  6. Step 6: Final answer
    x = 2,080,590.90

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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.