Home / 2,765,210.80-4,147,816.20-770,666.80

Finding the Fourth Proportional to 2,765,210.80, 4,147,816.20 and 770,666.80

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Solution

The fourth proportional to 2,765,210.80, 4,147,816.20 and 770,666.80 is: 1,156,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765,210.80 : 4,147,816.20 = 770,666.80 : x
  2. Step 2: Convert to fraction form
    2,765,210.80/4,147,816.20 = 770,666.80/x
  3. Step 3: Cross multiply
    2,765,210.80x = 4,147,816.20 × 770,666.80
  4. Step 4: Simplify right side
    2,765,210.80x = 3,196,584,237,842.16
  5. Step 5: Solve for x
    x = 3,196,584,237,842.16/2,765,210.80
  6. Step 6: Final answer
    x = 1,156,000.20

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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.