Home / 2,808,270.65-4,212,405.99-678,354.77

Finding the Fourth Proportional to 2,808,270.65, 4,212,405.99 and 678,354.77

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Solution

The fourth proportional to 2,808,270.65, 4,212,405.99 and 678,354.77 is: 1,017,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,270.65 : 4,212,405.99 = 678,354.77 : x
  2. Step 2: Convert to fraction form
    2,808,270.65/4,212,405.99 = 678,354.77/x
  3. Step 3: Cross multiply
    2,808,270.65x = 4,212,405.99 × 678,354.77
  4. Step 4: Simplify right side
    2,808,270.65x = 2,857,505,707,024.09
  5. Step 5: Solve for x
    x = 2,857,505,707,024.09/2,808,270.65
  6. Step 6: Final answer
    x = 1,017,532.16

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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.