Home / 428,850.14-591,813.52-237,864.90

Finding the Fourth Proportional to 428,850.14, 591,813.52 and 237,864.90

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Solution

The fourth proportional to 428,850.14, 591,813.52 and 237,864.90 is: 328,253.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,850.14 : 591,813.52 = 237,864.90 : x
  2. Step 2: Convert to fraction form
    428,850.14/591,813.52 = 237,864.90/x
  3. Step 3: Cross multiply
    428,850.14x = 591,813.52 × 237,864.90
  4. Step 4: Simplify right side
    428,850.14x = 140,771,663,753.45
  5. Step 5: Solve for x
    x = 140,771,663,753.45/428,850.14
  6. Step 6: Final answer
    x = 328,253.74

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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.