Home / 428,951.06-591,953.16-237,964.45

Finding the Fourth Proportional to 428,951.06, 591,953.16 and 237,964.45

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Solution

The fourth proportional to 428,951.06, 591,953.16 and 237,964.45 is: 328,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,951.06 : 591,953.16 = 237,964.45 : x
  2. Step 2: Convert to fraction form
    428,951.06/591,953.16 = 237,964.45/x
  3. Step 3: Cross multiply
    428,951.06x = 591,953.16 × 237,964.45
  4. Step 4: Simplify right side
    428,951.06x = 140,863,808,145.16
  5. Step 5: Solve for x
    x = 140,863,808,145.16/428,951.06
  6. Step 6: Final answer
    x = 328,391.33

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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.