Home / 1,679,905.90-2,520,186.90-668,855.80

Finding the Fourth Proportional to 1,679,905.90, 2,520,186.90 and 668,855.80

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Solution

The fourth proportional to 1,679,905.90, 2,520,186.90 and 668,855.80 is: 1,003,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,905.90 : 2,520,186.90 = 668,855.80 : x
  2. Step 2: Convert to fraction form
    1,679,905.90/2,520,186.90 = 668,855.80/x
  3. Step 3: Cross multiply
    1,679,905.90x = 2,520,186.90 × 668,855.80
  4. Step 4: Simplify right side
    1,679,905.90x = 1,685,641,625,149.02
  5. Step 5: Solve for x
    x = 1,685,641,625,149.02/1,679,905.90
  6. Step 6: Final answer
    x = 1,003,414.31

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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.