Home / 1,145,307.60-1,717,961.40-1,079,989.20

Finding the Fourth Proportional to 1,145,307.60, 1,717,961.40 and 1,079,989.20

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Solution

The fourth proportional to 1,145,307.60, 1,717,961.40 and 1,079,989.20 is: 1,619,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,307.60 : 1,717,961.40 = 1,079,989.20 : x
  2. Step 2: Convert to fraction form
    1,145,307.60/1,717,961.40 = 1,079,989.20/x
  3. Step 3: Cross multiply
    1,145,307.60x = 1,717,961.40 × 1,079,989.20
  4. Step 4: Simplify right side
    1,145,307.60x = 1,855,379,758,016.88
  5. Step 5: Solve for x
    x = 1,855,379,758,016.88/1,145,307.60
  6. Step 6: Final answer
    x = 1,619,983.80

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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.