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Finding the Fourth Proportional to 489,857.04, 676,000.02 and 274,997.04

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Solution

The fourth proportional to 489,857.04, 676,000.02 and 274,997.04 is: 379,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,857.04 : 676,000.02 = 274,997.04 : x
  2. Step 2: Convert to fraction form
    489,857.04/676,000.02 = 274,997.04/x
  3. Step 3: Cross multiply
    489,857.04x = 676,000.02 × 274,997.04
  4. Step 4: Simplify right side
    489,857.04x = 185,898,004,539.94
  5. Step 5: Solve for x
    x = 185,898,004,539.94/489,857.04
  6. Step 6: Final answer
    x = 379,494.40

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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.