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Finding the Fourth Proportional to 493,637.00, 740,144.45 and 418,783.28

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Solution

The fourth proportional to 493,637.00, 740,144.45 and 418,783.28 is: 627,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,637.00 : 740,144.45 = 418,783.28 : x
  2. Step 2: Convert to fraction form
    493,637.00/740,144.45 = 418,783.28/x
  3. Step 3: Cross multiply
    493,637.00x = 740,144.45 × 418,783.28
  4. Step 4: Simplify right side
    493,637.00x = 309,960,117,791.03
  5. Step 5: Solve for x
    x = 309,960,117,791.03/493,637.00
  6. Step 6: Final answer
    x = 627,911.04

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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.