Home / 2,765,287.80-4,147,931.70-770,743.80

Finding the Fourth Proportional to 2,765,287.80, 4,147,931.70 and 770,743.80

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Solution

The fourth proportional to 2,765,287.80, 4,147,931.70 and 770,743.80 is: 1,156,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,287.80 : 4,147,931.70 = 770,743.80 : x
  2. Step 2: Convert to fraction form
    2,765,287.80/4,147,931.70 = 770,743.80/x
  3. Step 3: Cross multiply
    2,765,287.80x = 4,147,931.70 × 770,743.80
  4. Step 4: Simplify right side
    2,765,287.80x = 3,196,992,640,598.46
  5. Step 5: Solve for x
    x = 3,196,992,640,598.46/2,765,287.80
  6. Step 6: Final answer
    x = 1,156,115.70

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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.