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Finding the Fourth Proportional to 476,813.79, 658,000.28 and 261,949.23

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Solution

The fourth proportional to 476,813.79, 658,000.28 and 261,949.23 is: 361,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,813.79 : 658,000.28 = 261,949.23 : x
  2. Step 2: Convert to fraction form
    476,813.79/658,000.28 = 261,949.23/x
  3. Step 3: Cross multiply
    476,813.79x = 658,000.28 × 261,949.23
  4. Step 4: Simplify right side
    476,813.79x = 172,362,665,376.04
  5. Step 5: Solve for x
    x = 172,362,665,376.04/476,813.79
  6. Step 6: Final answer
    x = 361,488.42

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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.