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Finding the Fourth Proportional to 499,981.20, 689,968.44 and 273,624

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Solution

The fourth proportional to 499,981.20, 689,968.44 and 273,624 is: 377,598.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,981.20 : 689,968.44 = 273,624 : x
  2. Step 2: Convert to fraction form
    499,981.20/689,968.44 = 273,624/x
  3. Step 3: Cross multiply
    499,981.20x = 689,968.44 × 273,624
  4. Step 4: Simplify right side
    499,981.20x = 188,791,924,426.56
  5. Step 5: Solve for x
    x = 188,791,924,426.56/499,981.20
  6. Step 6: Final answer
    x = 377,598.05

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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.