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Finding the Fourth Proportional to 662,313.66, 993,479.81 and 188,999.07

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Solution

The fourth proportional to 662,313.66, 993,479.81 and 188,999.07 is: 283,501.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,313.66 : 993,479.81 = 188,999.07 : x
  2. Step 2: Convert to fraction form
    662,313.66/993,479.81 = 188,999.07/x
  3. Step 3: Cross multiply
    662,313.66x = 993,479.81 × 188,999.07
  4. Step 4: Simplify right side
    662,313.66x = 187,766,759,208.78
  5. Step 5: Solve for x
    x = 187,766,759,208.78/662,313.66
  6. Step 6: Final answer
    x = 283,501.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.