Home / 1,398,669.20-2,097,489.36-499,868

Finding the Fourth Proportional to 1,398,669.20, 2,097,489.36 and 499,868

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Solution

The fourth proportional to 1,398,669.20, 2,097,489.36 and 499,868 is: 749,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,669.20 : 2,097,489.36 = 499,868 : x
  2. Step 2: Convert to fraction form
    1,398,669.20/2,097,489.36 = 499,868/x
  3. Step 3: Cross multiply
    1,398,669.20x = 2,097,489.36 × 499,868
  4. Step 4: Simplify right side
    1,398,669.20x = 1,048,467,811,404.48
  5. Step 5: Solve for x
    x = 1,048,467,811,404.48/1,398,669.20
  6. Step 6: Final answer
    x = 749,618.15

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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.