Home / 1,405,886.20-2,109,002.10-458,999.80

Finding the Fourth Proportional to 1,405,886.20, 2,109,002.10 and 458,999.80

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Solution

The fourth proportional to 1,405,886.20, 2,109,002.10 and 458,999.80 is: 688,556.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,886.20 : 2,109,002.10 = 458,999.80 : x
  2. Step 2: Convert to fraction form
    1,405,886.20/2,109,002.10 = 458,999.80/x
  3. Step 3: Cross multiply
    1,405,886.20x = 2,109,002.10 × 458,999.80
  4. Step 4: Simplify right side
    1,405,886.20x = 968,031,542,099.58
  5. Step 5: Solve for x
    x = 968,031,542,099.58/1,405,886.20
  6. Step 6: Final answer
    x = 688,556.12

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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.