Home / 5,178,000.40-7,767,000.60-3,485,942.80

Finding the Fourth Proportional to 5,178,000.40, 7,767,000.60 and 3,485,942.80

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Solution

The fourth proportional to 5,178,000.40, 7,767,000.60 and 3,485,942.80 is: 5,228,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,000.40 : 7,767,000.60 = 3,485,942.80 : x
  2. Step 2: Convert to fraction form
    5,178,000.40/7,767,000.60 = 3,485,942.80/x
  3. Step 3: Cross multiply
    5,178,000.40x = 7,767,000.60 × 3,485,942.80
  4. Step 4: Simplify right side
    5,178,000.40x = 27,075,319,819,165.68
  5. Step 5: Solve for x
    x = 27,075,319,819,165.68/5,178,000.40
  6. Step 6: Final answer
    x = 5,228,914.20

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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.