Home / 1,420,281.74-1,959,958.52-775,704.50

Finding the Fourth Proportional to 1,420,281.74, 1,959,958.52 and 775,704.50

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Solution

The fourth proportional to 1,420,281.74, 1,959,958.52 and 775,704.50 is: 1,070,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,281.74 : 1,959,958.52 = 775,704.50 : x
  2. Step 2: Convert to fraction form
    1,420,281.74/1,959,958.52 = 775,704.50/x
  3. Step 3: Cross multiply
    1,420,281.74x = 1,959,958.52 × 775,704.50
  4. Step 4: Simplify right side
    1,420,281.74x = 1,520,348,640,357.76
  5. Step 5: Solve for x
    x = 1,520,348,640,357.76/1,420,281.74
  6. Step 6: Final answer
    x = 1,070,455.67

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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.