Home / 802,213.11-1,107,036.45-439,629.30

Finding the Fourth Proportional to 802,213.11, 1,107,036.45 and 439,629.30

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Solution

The fourth proportional to 802,213.11, 1,107,036.45 and 439,629.30 is: 606,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,213.11 : 1,107,036.45 = 439,629.30 : x
  2. Step 2: Convert to fraction form
    802,213.11/1,107,036.45 = 439,629.30/x
  3. Step 3: Cross multiply
    802,213.11x = 1,107,036.45 × 439,629.30
  4. Step 4: Simplify right side
    802,213.11x = 486,685,659,587.99
  5. Step 5: Solve for x
    x = 486,685,659,587.99/802,213.11
  6. Step 6: Final answer
    x = 606,678.77

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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.