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Finding the Fourth Proportional to 521,723.20, 732,512 and 521,723.20

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Solution

The fourth proportional to 521,723.20, 732,512 and 521,723.20 is: 732,512

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,723.20 : 732,512 = 521,723.20 : x
  2. Step 2: Convert to fraction form
    521,723.20/732,512 = 521,723.20/x
  3. Step 3: Cross multiply
    521,723.20x = 732,512 × 521,723.20
  4. Step 4: Simplify right side
    521,723.20x = 382,168,504,678.40
  5. Step 5: Solve for x
    x = 382,168,504,678.40/521,723.20
  6. Step 6: Final answer
    x = 732,512

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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.