Home / 428,996.45-592,007.23-238,005.74

Finding the Fourth Proportional to 428,996.45, 592,007.23 and 238,005.74

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Solution

The fourth proportional to 428,996.45, 592,007.23 and 238,005.74 is: 328,443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,996.45 : 592,007.23 = 238,005.74 : x
  2. Step 2: Convert to fraction form
    428,996.45/592,007.23 = 238,005.74/x
  3. Step 3: Cross multiply
    428,996.45x = 592,007.23 × 238,005.74
  4. Step 4: Simplify right side
    428,996.45x = 140,901,120,639.03
  5. Step 5: Solve for x
    x = 140,901,120,639.03/428,996.45
  6. Step 6: Final answer
    x = 328,443.56

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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.