Home / 428,903.28-591,823.80-247,586.40

Finding the Fourth Proportional to 428,903.28, 591,823.80 and 247,586.40

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Solution

The fourth proportional to 428,903.28, 591,823.80 and 247,586.40 is: 341,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,903.28 : 591,823.80 = 247,586.40 : x
  2. Step 2: Convert to fraction form
    428,903.28/591,823.80 = 247,586.40/x
  3. Step 3: Cross multiply
    428,903.28x = 591,823.80 × 247,586.40
  4. Step 4: Simplify right side
    428,903.28x = 146,527,524,076.32
  5. Step 5: Solve for x
    x = 146,527,524,076.32/428,903.28
  6. Step 6: Final answer
    x = 341,633.02

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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.