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Finding the Fourth Proportional to 493,830.56, 736,429.34 and 439,398.56

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Solution

The fourth proportional to 493,830.56, 736,429.34 and 439,398.56 is: 655,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,830.56 : 736,429.34 = 439,398.56 : x
  2. Step 2: Convert to fraction form
    493,830.56/736,429.34 = 439,398.56/x
  3. Step 3: Cross multiply
    493,830.56x = 736,429.34 × 439,398.56
  4. Step 4: Simplify right side
    493,830.56x = 323,585,991,537.75
  5. Step 5: Solve for x
    x = 323,585,991,537.75/493,830.56
  6. Step 6: Final answer
    x = 655,257.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.