Home / 428,836.95-591,824.98-245,102.56

Finding the Fourth Proportional to 428,836.95, 591,824.98 and 245,102.56

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Solution

The fourth proportional to 428,836.95, 591,824.98 and 245,102.56 is: 338,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,836.95 : 591,824.98 = 245,102.56 : x
  2. Step 2: Convert to fraction form
    428,836.95/591,824.98 = 245,102.56/x
  3. Step 3: Cross multiply
    428,836.95x = 591,824.98 × 245,102.56
  4. Step 4: Simplify right side
    428,836.95x = 145,057,813,485.31
  5. Step 5: Solve for x
    x = 145,057,813,485.31/428,836.95
  6. Step 6: Final answer
    x = 338,258.66

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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.