Home / 695,228.76-1,042,580.69-320,989.32

Finding the Fourth Proportional to 695,228.76, 1,042,580.69 and 320,989.32

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Solution

The fourth proportional to 695,228.76, 1,042,580.69 and 320,989.32 is: 481,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,228.76 : 1,042,580.69 = 320,989.32 : x
  2. Step 2: Convert to fraction form
    695,228.76/1,042,580.69 = 320,989.32/x
  3. Step 3: Cross multiply
    695,228.76x = 1,042,580.69 × 320,989.32
  4. Step 4: Simplify right side
    695,228.76x = 334,657,265,123.28
  5. Step 5: Solve for x
    x = 334,657,265,123.28/695,228.76
  6. Step 6: Final answer
    x = 481,362.80

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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.