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Finding the Fourth Proportional to 521,958.10, 729,166.70 and 521,958.10

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Solution

The fourth proportional to 521,958.10, 729,166.70 and 521,958.10 is: 729,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,958.10 : 729,166.70 = 521,958.10 : x
  2. Step 2: Convert to fraction form
    521,958.10/729,166.70 = 521,958.10/x
  3. Step 3: Cross multiply
    521,958.10x = 729,166.70 × 521,958.10
  4. Step 4: Simplify right side
    521,958.10x = 380,594,465,315.27
  5. Step 5: Solve for x
    x = 380,594,465,315.27/521,958.10
  6. Step 6: Final answer
    x = 729,166.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.