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Finding the Fourth Proportional to 543,123.88, 749,536.52 and 301,408.45

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Solution

The fourth proportional to 543,123.88, 749,536.52 and 301,408.45 is: 415,957.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,123.88 : 749,536.52 = 301,408.45 : x
  2. Step 2: Convert to fraction form
    543,123.88/749,536.52 = 301,408.45/x
  3. Step 3: Cross multiply
    543,123.88x = 749,536.52 × 301,408.45
  4. Step 4: Simplify right side
    543,123.88x = 225,916,637,330.71
  5. Step 5: Solve for x
    x = 225,916,637,330.71/543,123.88
  6. Step 6: Final answer
    x = 415,957.84

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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.