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Finding the Fourth Proportional to 428,167.76, 590,846.11 and 234,536.76

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Solution

The fourth proportional to 428,167.76, 590,846.11 and 234,536.76 is: 323,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,167.76 : 590,846.11 = 234,536.76 : x
  2. Step 2: Convert to fraction form
    428,167.76/590,846.11 = 234,536.76/x
  3. Step 3: Cross multiply
    428,167.76x = 590,846.11 × 234,536.76
  4. Step 4: Simplify right side
    428,167.76x = 138,575,131,711.66
  5. Step 5: Solve for x
    x = 138,575,131,711.66/428,167.76
  6. Step 6: Final answer
    x = 323,646.82

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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.