Home / 802,212.11-1,107,035.07-439,628.30

Finding the Fourth Proportional to 802,212.11, 1,107,035.07 and 439,628.30

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Solution

The fourth proportional to 802,212.11, 1,107,035.07 and 439,628.30 is: 606,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,212.11 : 1,107,035.07 = 439,628.30 : x
  2. Step 2: Convert to fraction form
    802,212.11/1,107,035.07 = 439,628.30/x
  3. Step 3: Cross multiply
    802,212.11x = 1,107,035.07 × 439,628.30
  4. Step 4: Simplify right side
    802,212.11x = 486,683,945,864.48
  5. Step 5: Solve for x
    x = 486,683,945,864.48/802,212.11
  6. Step 6: Final answer
    x = 606,677.39

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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.