Home / 1,405,885.20-2,109,000.60-458,998.80

Finding the Fourth Proportional to 1,405,885.20, 2,109,000.60 and 458,998.80

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Solution

The fourth proportional to 1,405,885.20, 2,109,000.60 and 458,998.80 is: 688,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,885.20 : 2,109,000.60 = 458,998.80 : x
  2. Step 2: Convert to fraction form
    1,405,885.20/2,109,000.60 = 458,998.80/x
  3. Step 3: Cross multiply
    1,405,885.20x = 2,109,000.60 × 458,998.80
  4. Step 4: Simplify right side
    1,405,885.20x = 968,028,744,599.28
  5. Step 5: Solve for x
    x = 968,028,744,599.28/1,405,885.20
  6. Step 6: Final answer
    x = 688,554.62

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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.