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Finding the Fourth Proportional to 437,722.05, 656,194.28 and 260,040.45

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Solution

The fourth proportional to 437,722.05, 656,194.28 and 260,040.45 is: 389,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,722.05 : 656,194.28 = 260,040.45 : x
  2. Step 2: Convert to fraction form
    437,722.05/656,194.28 = 260,040.45/x
  3. Step 3: Cross multiply
    437,722.05x = 656,194.28 × 260,040.45
  4. Step 4: Simplify right side
    437,722.05x = 170,637,054,558.42
  5. Step 5: Solve for x
    x = 170,637,054,558.42/437,722.05
  6. Step 6: Final answer
    x = 389,829.70

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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.