Home / 428,741.40-591,624.36-237,754.20

Finding the Fourth Proportional to 428,741.40, 591,624.36 and 237,754.20

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Solution

The fourth proportional to 428,741.40, 591,624.36 and 237,754.20 is: 328,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,741.40 : 591,624.36 = 237,754.20 : x
  2. Step 2: Convert to fraction form
    428,741.40/591,624.36 = 237,754.20/x
  3. Step 3: Cross multiply
    428,741.40x = 591,624.36 × 237,754.20
  4. Step 4: Simplify right side
    428,741.40x = 140,661,176,412.31
  5. Step 5: Solve for x
    x = 140,661,176,412.31/428,741.40
  6. Step 6: Final answer
    x = 328,079.30

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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.