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Finding the Fourth Proportional to 486,014.10, 678,845.10 and 486,014.10

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Solution

The fourth proportional to 486,014.10, 678,845.10 and 486,014.10 is: 678,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,014.10 : 678,845.10 = 486,014.10 : x
  2. Step 2: Convert to fraction form
    486,014.10/678,845.10 = 486,014.10/x
  3. Step 3: Cross multiply
    486,014.10x = 678,845.10 × 486,014.10
  4. Step 4: Simplify right side
    486,014.10x = 329,928,290,315.91
  5. Step 5: Solve for x
    x = 329,928,290,315.91/486,014.10
  6. Step 6: Final answer
    x = 678,845.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.