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Finding the Fourth Proportional to 483,390.60, 724,211.10 and 413,406.60

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Solution

The fourth proportional to 483,390.60, 724,211.10 and 413,406.60 is: 619,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,390.60 : 724,211.10 = 413,406.60 : x
  2. Step 2: Convert to fraction form
    483,390.60/724,211.10 = 413,406.60/x
  3. Step 3: Cross multiply
    483,390.60x = 724,211.10 × 413,406.60
  4. Step 4: Simplify right side
    483,390.60x = 299,393,648,533.26
  5. Step 5: Solve for x
    x = 299,393,648,533.26/483,390.60
  6. Step 6: Final answer
    x = 619,361.75

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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.