Home / 770,080.42-1,155,317.67-296,638.66

Finding the Fourth Proportional to 770,080.42, 1,155,317.67 and 296,638.66

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Solution

The fourth proportional to 770,080.42, 1,155,317.67 and 296,638.66 is: 445,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,080.42 : 1,155,317.67 = 296,638.66 : x
  2. Step 2: Convert to fraction form
    770,080.42/1,155,317.67 = 296,638.66/x
  3. Step 3: Cross multiply
    770,080.42x = 1,155,317.67 × 296,638.66
  4. Step 4: Simplify right side
    770,080.42x = 342,711,885,503.12
  5. Step 5: Solve for x
    x = 342,711,885,503.12/770,080.42
  6. Step 6: Final answer
    x = 445,033.89

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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.