Home / 428,509.60-591,349.20-234,935.52

Finding the Fourth Proportional to 428,509.60, 591,349.20 and 234,935.52

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Solution

The fourth proportional to 428,509.60, 591,349.20 and 234,935.52 is: 324,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,509.60 : 591,349.20 = 234,935.52 : x
  2. Step 2: Convert to fraction form
    428,509.60/591,349.20 = 234,935.52/x
  3. Step 3: Cross multiply
    428,509.60x = 591,349.20 × 234,935.52
  4. Step 4: Simplify right side
    428,509.60x = 138,928,931,803.58
  5. Step 5: Solve for x
    x = 138,928,931,803.58/428,509.60
  6. Step 6: Final answer
    x = 324,214.28

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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.