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Finding the Fourth Proportional to 521,569.35, 780,604.43 and 521,569.35

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Solution

The fourth proportional to 521,569.35, 780,604.43 and 521,569.35 is: 780,604.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,569.35 : 780,604.43 = 521,569.35 : x
  2. Step 2: Convert to fraction form
    521,569.35/780,604.43 = 521,569.35/x
  3. Step 3: Cross multiply
    521,569.35x = 780,604.43 × 521,569.35
  4. Step 4: Simplify right side
    521,569.35x = 407,139,342,554.37
  5. Step 5: Solve for x
    x = 407,139,342,554.37/521,569.35
  6. Step 6: Final answer
    x = 780,604.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.