Home / 1,490,786.40-2,234,867.40-891,985.80

Finding the Fourth Proportional to 1,490,786.40, 2,234,867.40 and 891,985.80

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Solution

The fourth proportional to 1,490,786.40, 2,234,867.40 and 891,985.80 is: 1,337,193.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,786.40 : 2,234,867.40 = 891,985.80 : x
  2. Step 2: Convert to fraction form
    1,490,786.40/2,234,867.40 = 891,985.80/x
  3. Step 3: Cross multiply
    1,490,786.40x = 2,234,867.40 × 891,985.80
  4. Step 4: Simplify right side
    1,490,786.40x = 1,993,469,985,682.92
  5. Step 5: Solve for x
    x = 1,993,469,985,682.92/1,490,786.40
  6. Step 6: Final answer
    x = 1,337,193.57

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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.