Home / 428,712.48-591,636.96-237,743.64

Finding the Fourth Proportional to 428,712.48, 591,636.96 and 237,743.64

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Solution

The fourth proportional to 428,712.48, 591,636.96 and 237,743.64 is: 328,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,712.48 : 591,636.96 = 237,743.64 : x
  2. Step 2: Convert to fraction form
    428,712.48/591,636.96 = 237,743.64/x
  3. Step 3: Cross multiply
    428,712.48x = 591,636.96 × 237,743.64
  4. Step 4: Simplify right side
    428,712.48x = 140,657,924,428.93
  5. Step 5: Solve for x
    x = 140,657,924,428.93/428,712.48
  6. Step 6: Final answer
    x = 328,093.84

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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.