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Finding the Fourth Proportional to 419,753.60, 579,243.08 and 228,762.88

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Solution

The fourth proportional to 419,753.60, 579,243.08 and 228,762.88 is: 315,683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,753.60 : 579,243.08 = 228,762.88 : x
  2. Step 2: Convert to fraction form
    419,753.60/579,243.08 = 228,762.88/x
  3. Step 3: Cross multiply
    419,753.60x = 579,243.08 × 228,762.88
  4. Step 4: Simplify right side
    419,753.60x = 132,509,315,200.87
  5. Step 5: Solve for x
    x = 132,509,315,200.87/419,753.60
  6. Step 6: Final answer
    x = 315,683.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.