Home / 428,311.23-591,056.70-234,716.63

Finding the Fourth Proportional to 428,311.23, 591,056.70 and 234,716.63

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Solution

The fourth proportional to 428,311.23, 591,056.70 and 234,716.63 is: 323,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,311.23 : 591,056.70 = 234,716.63 : x
  2. Step 2: Convert to fraction form
    428,311.23/591,056.70 = 234,716.63/x
  3. Step 3: Cross multiply
    428,311.23x = 591,056.70 × 234,716.63
  4. Step 4: Simplify right side
    428,311.23x = 138,730,832,927.45
  5. Step 5: Solve for x
    x = 138,730,832,927.45/428,311.23
  6. Step 6: Final answer
    x = 323,901.93

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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.