Home / 1,869,291.28-2,803,999.92-521,486.80

Finding the Fourth Proportional to 1,869,291.28, 2,803,999.92 and 521,486.80

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Solution

The fourth proportional to 1,869,291.28, 2,803,999.92 and 521,486.80 is: 782,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,291.28 : 2,803,999.92 = 521,486.80 : x
  2. Step 2: Convert to fraction form
    1,869,291.28/2,803,999.92 = 521,486.80/x
  3. Step 3: Cross multiply
    1,869,291.28x = 2,803,999.92 × 521,486.80
  4. Step 4: Simplify right side
    1,869,291.28x = 1,462,248,945,481.06
  5. Step 5: Solve for x
    x = 1,462,248,945,481.06/1,869,291.28
  6. Step 6: Final answer
    x = 782,247.78

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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.