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Finding the Fourth Proportional to 499,384.62, 689,153.67 and 273,030.12

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Solution

The fourth proportional to 499,384.62, 689,153.67 and 273,030.12 is: 376,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,384.62 : 689,153.67 = 273,030.12 : x
  2. Step 2: Convert to fraction form
    499,384.62/689,153.67 = 273,030.12/x
  3. Step 3: Cross multiply
    499,384.62x = 689,153.67 × 273,030.12
  4. Step 4: Simplify right side
    499,384.62x = 188,159,709,218.54
  5. Step 5: Solve for x
    x = 188,159,709,218.54/499,384.62
  6. Step 6: Final answer
    x = 376,783.15

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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.