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Finding the Fourth Proportional to 535,903.72, 739,395.66 and 345,027.64

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Solution

The fourth proportional to 535,903.72, 739,395.66 and 345,027.64 is: 476,040.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,903.72 : 739,395.66 = 345,027.64 : x
  2. Step 2: Convert to fraction form
    535,903.72/739,395.66 = 345,027.64/x
  3. Step 3: Cross multiply
    535,903.72x = 739,395.66 × 345,027.64
  4. Step 4: Simplify right side
    535,903.72x = 255,111,939,596.04
  5. Step 5: Solve for x
    x = 255,111,939,596.04/535,903.72
  6. Step 6: Final answer
    x = 476,040.62

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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.