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Finding the Fourth Proportional to 536,572.80, 740,455.02 and 303,978.06

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Solution

The fourth proportional to 536,572.80, 740,455.02 and 303,978.06 is: 419,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,572.80 : 740,455.02 = 303,978.06 : x
  2. Step 2: Convert to fraction form
    536,572.80/740,455.02 = 303,978.06/x
  3. Step 3: Cross multiply
    536,572.80x = 740,455.02 × 303,978.06
  4. Step 4: Simplify right side
    536,572.80x = 225,082,080,496.86
  5. Step 5: Solve for x
    x = 225,082,080,496.86/536,572.80
  6. Step 6: Final answer
    x = 419,480.97

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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.