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Finding the Fourth Proportional to 873,145.60, 1,309,877.03 and 360,811.96

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Solution

The fourth proportional to 873,145.60, 1,309,877.03 and 360,811.96 is: 541,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,145.60 : 1,309,877.03 = 360,811.96 : x
  2. Step 2: Convert to fraction form
    873,145.60/1,309,877.03 = 360,811.96/x
  3. Step 3: Cross multiply
    873,145.60x = 1,309,877.03 × 360,811.96
  4. Step 4: Simplify right side
    873,145.60x = 472,619,296,180.62
  5. Step 5: Solve for x
    x = 472,619,296,180.62/873,145.60
  6. Step 6: Final answer
    x = 541,283.49

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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.