Home / 428,660.64-591,585.12-237,711.24

Finding the Fourth Proportional to 428,660.64, 591,585.12 and 237,711.24

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Solution

The fourth proportional to 428,660.64, 591,585.12 and 237,711.24 is: 328,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,660.64 : 591,585.12 = 237,711.24 : x
  2. Step 2: Convert to fraction form
    428,660.64/591,585.12 = 237,711.24/x
  3. Step 3: Cross multiply
    428,660.64x = 591,585.12 × 237,711.24
  4. Step 4: Simplify right side
    428,660.64x = 140,626,432,440.75
  5. Step 5: Solve for x
    x = 140,626,432,440.75/428,660.64
  6. Step 6: Final answer
    x = 328,060.05

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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.