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Finding the Fourth Proportional to 458,544.30, 687,816.45 and 458,544.30

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Solution

The fourth proportional to 458,544.30, 687,816.45 and 458,544.30 is: 687,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,544.30 : 687,816.45 = 458,544.30 : x
  2. Step 2: Convert to fraction form
    458,544.30/687,816.45 = 458,544.30/x
  3. Step 3: Cross multiply
    458,544.30x = 687,816.45 × 458,544.30
  4. Step 4: Simplify right side
    458,544.30x = 315,394,312,593.74
  5. Step 5: Solve for x
    x = 315,394,312,593.74/458,544.30
  6. Step 6: Final answer
    x = 687,816.45

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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.