Home / 428,415.48-591,203.24-237,424.76

Finding the Fourth Proportional to 428,415.48, 591,203.24 and 237,424.76

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Solution

The fourth proportional to 428,415.48, 591,203.24 and 237,424.76 is: 327,640.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,415.48 : 591,203.24 = 237,424.76 : x
  2. Step 2: Convert to fraction form
    428,415.48/591,203.24 = 237,424.76/x
  3. Step 3: Cross multiply
    428,415.48x = 591,203.24 × 237,424.76
  4. Step 4: Simplify right side
    428,415.48x = 140,366,287,368.22
  5. Step 5: Solve for x
    x = 140,366,287,368.22/428,415.48
  6. Step 6: Final answer
    x = 327,640.56

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Double scale
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1.5x scale

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.