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Finding the Fourth Proportional to 525,031.80, 724,241.94 and 331,370.69

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Solution

The fourth proportional to 525,031.80, 724,241.94 and 331,370.69 is: 457,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,031.80 : 724,241.94 = 331,370.69 : x
  2. Step 2: Convert to fraction form
    525,031.80/724,241.94 = 331,370.69/x
  3. Step 3: Cross multiply
    525,031.80x = 724,241.94 × 331,370.69
  4. Step 4: Simplify right side
    525,031.80x = 239,992,547,763.53
  5. Step 5: Solve for x
    x = 239,992,547,763.53/525,031.80
  6. Step 6: Final answer
    x = 457,100.98

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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.