Home / 428,699.36-591,634.86-237,730.52

Finding the Fourth Proportional to 428,699.36, 591,634.86 and 237,730.52

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Solution

The fourth proportional to 428,699.36, 591,634.86 and 237,730.52 is: 328,084.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,699.36 : 591,634.86 = 237,730.52 : x
  2. Step 2: Convert to fraction form
    428,699.36/591,634.86 = 237,730.52/x
  3. Step 3: Cross multiply
    428,699.36x = 591,634.86 × 237,730.52
  4. Step 4: Simplify right side
    428,699.36x = 140,649,662,917.93
  5. Step 5: Solve for x
    x = 140,649,662,917.93/428,699.36
  6. Step 6: Final answer
    x = 328,084.61

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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.