Home / 891,633.05-1,230,453.41-509,668.03

Finding the Fourth Proportional to 891,633.05, 1,230,453.41 and 509,668.03

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Solution

The fourth proportional to 891,633.05, 1,230,453.41 and 509,668.03 is: 703,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,633.05 : 1,230,453.41 = 509,668.03 : x
  2. Step 2: Convert to fraction form
    891,633.05/1,230,453.41 = 509,668.03/x
  3. Step 3: Cross multiply
    891,633.05x = 1,230,453.41 × 509,668.03
  4. Step 4: Simplify right side
    891,633.05x = 627,122,759,857.01
  5. Step 5: Solve for x
    x = 627,122,759,857.01/891,633.05
  6. Step 6: Final answer
    x = 703,341.77

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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.