Home / 500,455.08-690,624.57-271,007.12

Finding the Fourth Proportional to 500,455.08, 690,624.57 and 271,007.12

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Solution

The fourth proportional to 500,455.08, 690,624.57 and 271,007.12 is: 373,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,455.08 : 690,624.57 = 271,007.12 : x
  2. Step 2: Convert to fraction form
    500,455.08/690,624.57 = 271,007.12/x
  3. Step 3: Cross multiply
    500,455.08x = 690,624.57 × 271,007.12
  4. Step 4: Simplify right side
    500,455.08x = 187,164,172,263.82
  5. Step 5: Solve for x
    x = 187,164,172,263.82/500,455.08
  6. Step 6: Final answer
    x = 373,987.96

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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.