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Finding the Fourth Proportional to 545,965, 753,437.19 and 300,958.48

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Solution

The fourth proportional to 545,965, 753,437.19 and 300,958.48 is: 415,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,965 : 753,437.19 = 300,958.48 : x
  2. Step 2: Convert to fraction form
    545,965/753,437.19 = 300,958.48/x
  3. Step 3: Cross multiply
    545,965x = 753,437.19 × 300,958.48
  4. Step 4: Simplify right side
    545,965x = 226,753,311,477.87
  5. Step 5: Solve for x
    x = 226,753,311,477.87/545,965
  6. Step 6: Final answer
    x = 415,325.73

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1.5x scale

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.