Home / 428,801.28-591,674.88-237,784.32

Finding the Fourth Proportional to 428,801.28, 591,674.88 and 237,784.32

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Solution

The fourth proportional to 428,801.28, 591,674.88 and 237,784.32 is: 328,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,801.28 : 591,674.88 = 237,784.32 : x
  2. Step 2: Convert to fraction form
    428,801.28/591,674.88 = 237,784.32/x
  3. Step 3: Cross multiply
    428,801.28x = 591,674.88 × 237,784.32
  4. Step 4: Simplify right side
    428,801.28x = 140,691,009,001.88
  5. Step 5: Solve for x
    x = 140,691,009,001.88/428,801.28
  6. Step 6: Final answer
    x = 328,103.05

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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.