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Finding the Fourth Proportional to 873,318.76, 1,309,978.02 and 242,232.58

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Solution

The fourth proportional to 873,318.76, 1,309,978.02 and 242,232.58 is: 363,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,318.76 : 1,309,978.02 = 242,232.58 : x
  2. Step 2: Convert to fraction form
    873,318.76/1,309,978.02 = 242,232.58/x
  3. Step 3: Cross multiply
    873,318.76x = 1,309,978.02 × 242,232.58
  4. Step 4: Simplify right side
    873,318.76x = 317,319,355,527.89
  5. Step 5: Solve for x
    x = 317,319,355,527.89/873,318.76
  6. Step 6: Final answer
    x = 363,348.84

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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.