Home / 811,834.04-1,120,303.44-449,273.20

Finding the Fourth Proportional to 811,834.04, 1,120,303.44 and 449,273.20

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Solution

The fourth proportional to 811,834.04, 1,120,303.44 and 449,273.20 is: 619,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,834.04 : 1,120,303.44 = 449,273.20 : x
  2. Step 2: Convert to fraction form
    811,834.04/1,120,303.44 = 449,273.20/x
  3. Step 3: Cross multiply
    811,834.04x = 1,120,303.44 × 449,273.20
  4. Step 4: Simplify right side
    811,834.04x = 503,322,311,459.81
  5. Step 5: Solve for x
    x = 503,322,311,459.81/811,834.04
  6. Step 6: Final answer
    x = 619,981.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.