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Finding the Fourth Proportional to 521,361.20, 732,005.20 and 521,361.20

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Solution

The fourth proportional to 521,361.20, 732,005.20 and 521,361.20 is: 732,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,361.20 : 732,005.20 = 521,361.20 : x
  2. Step 2: Convert to fraction form
    521,361.20/732,005.20 = 521,361.20/x
  3. Step 3: Cross multiply
    521,361.20x = 732,005.20 × 521,361.20
  4. Step 4: Simplify right side
    521,361.20x = 381,639,109,478.24
  5. Step 5: Solve for x
    x = 381,639,109,478.24/521,361.20
  6. Step 6: Final answer
    x = 732,005.20

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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.