Home / 428,327.85-590,140.83-282,875.34

Finding the Fourth Proportional to 428,327.85, 590,140.83 and 282,875.34

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Solution

The fourth proportional to 428,327.85, 590,140.83 and 282,875.34 is: 389,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,327.85 : 590,140.83 = 282,875.34 : x
  2. Step 2: Convert to fraction form
    428,327.85/590,140.83 = 282,875.34/x
  3. Step 3: Cross multiply
    428,327.85x = 590,140.83 × 282,875.34
  4. Step 4: Simplify right side
    428,327.85x = 166,936,287,934.13
  5. Step 5: Solve for x
    x = 166,936,287,934.13/428,327.85
  6. Step 6: Final answer
    x = 389,739.51

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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.