Home / 739,247-1,108,703.28-339,503.50

Finding the Fourth Proportional to 739,247, 1,108,703.28 and 339,503.50

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Solution

The fourth proportional to 739,247, 1,108,703.28 and 339,503.50 is: 509,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,247 : 1,108,703.28 = 339,503.50 : x
  2. Step 2: Convert to fraction form
    739,247/1,108,703.28 = 339,503.50/x
  3. Step 3: Cross multiply
    739,247x = 1,108,703.28 × 339,503.50
  4. Step 4: Simplify right side
    739,247x = 376,408,644,021.48
  5. Step 5: Solve for x
    x = 376,408,644,021.48/739,247
  6. Step 6: Final answer
    x = 509,178.45

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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.