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Finding the Fourth Proportional to 513,521.39, 708,420.73 and 332,291.89

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Solution

The fourth proportional to 513,521.39, 708,420.73 and 332,291.89 is: 458,408.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,521.39 : 708,420.73 = 332,291.89 : x
  2. Step 2: Convert to fraction form
    513,521.39/708,420.73 = 332,291.89/x
  3. Step 3: Cross multiply
    513,521.39x = 708,420.73 × 332,291.89
  4. Step 4: Simplify right side
    513,521.39x = 235,402,460,685.10
  5. Step 5: Solve for x
    x = 235,402,460,685.10/513,521.39
  6. Step 6: Final answer
    x = 458,408.29

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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.