Home / 428,741.28-591,659.64-237,755.16

Finding the Fourth Proportional to 428,741.28, 591,659.64 and 237,755.16

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Solution

The fourth proportional to 428,741.28, 591,659.64 and 237,755.16 is: 328,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,741.28 : 591,659.64 = 237,755.16 : x
  2. Step 2: Convert to fraction form
    428,741.28/591,659.64 = 237,755.16/x
  3. Step 3: Cross multiply
    428,741.28x = 591,659.64 × 237,755.16
  4. Step 4: Simplify right side
    428,741.28x = 140,670,132,373.74
  5. Step 5: Solve for x
    x = 140,670,132,373.74/428,741.28
  6. Step 6: Final answer
    x = 328,100.28

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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.