Home / 428,837.80-591,867.02-237,912.70

Finding the Fourth Proportional to 428,837.80, 591,867.02 and 237,912.70

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Solution

The fourth proportional to 428,837.80, 591,867.02 and 237,912.70 is: 328,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,837.80 : 591,867.02 = 237,912.70 : x
  2. Step 2: Convert to fraction form
    428,837.80/591,867.02 = 237,912.70/x
  3. Step 3: Cross multiply
    428,837.80x = 591,867.02 × 237,912.70
  4. Step 4: Simplify right side
    428,837.80x = 140,812,680,769.15
  5. Step 5: Solve for x
    x = 140,812,680,769.15/428,837.80
  6. Step 6: Final answer
    x = 328,358.84

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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.