Home / 537,999.86-742,272.30-305,388.11

Finding the Fourth Proportional to 537,999.86, 742,272.30 and 305,388.11

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Solution

The fourth proportional to 537,999.86, 742,272.30 and 305,388.11 is: 421,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,999.86 : 742,272.30 = 305,388.11 : x
  2. Step 2: Convert to fraction form
    537,999.86/742,272.30 = 305,388.11/x
  3. Step 3: Cross multiply
    537,999.86x = 742,272.30 × 305,388.11
  4. Step 4: Simplify right side
    537,999.86x = 226,681,131,090.99
  5. Step 5: Solve for x
    x = 226,681,131,090.99/537,999.86
  6. Step 6: Final answer
    x = 421,340.51

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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.