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Finding the Fourth Proportional to 984,415.72, 1,476,706.95 and 274,444.42

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Solution

The fourth proportional to 984,415.72, 1,476,706.95 and 274,444.42 is: 411,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,415.72 : 1,476,706.95 = 274,444.42 : x
  2. Step 2: Convert to fraction form
    984,415.72/1,476,706.95 = 274,444.42/x
  3. Step 3: Cross multiply
    984,415.72x = 1,476,706.95 × 274,444.42
  4. Step 4: Simplify right side
    984,415.72x = 405,273,982,402.72
  5. Step 5: Solve for x
    x = 405,273,982,402.72/984,415.72
  6. Step 6: Final answer
    x = 411,689.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.