Home / 509,969.22-703,743.24-280,526.34

Finding the Fourth Proportional to 509,969.22, 703,743.24 and 280,526.34

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Solution

The fourth proportional to 509,969.22, 703,743.24 and 280,526.34 is: 387,118.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,969.22 : 703,743.24 = 280,526.34 : x
  2. Step 2: Convert to fraction form
    509,969.22/703,743.24 = 280,526.34/x
  3. Step 3: Cross multiply
    509,969.22x = 703,743.24 × 280,526.34
  4. Step 4: Simplify right side
    509,969.22x = 197,418,515,416.94
  5. Step 5: Solve for x
    x = 197,418,515,416.94/509,969.22
  6. Step 6: Final answer
    x = 387,118.49

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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.