Home / 821,251.05-1,133,161.85-458,619.11

Finding the Fourth Proportional to 821,251.05, 1,133,161.85 and 458,619.11

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Solution

The fourth proportional to 821,251.05, 1,133,161.85 and 458,619.11 is: 632,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,251.05 : 1,133,161.85 = 458,619.11 : x
  2. Step 2: Convert to fraction form
    821,251.05/1,133,161.85 = 458,619.11/x
  3. Step 3: Cross multiply
    821,251.05x = 1,133,161.85 × 458,619.11
  4. Step 4: Simplify right side
    821,251.05x = 519,689,683,112.41
  5. Step 5: Solve for x
    x = 519,689,683,112.41/821,251.05
  6. Step 6: Final answer
    x = 632,802.46

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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.