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Finding the Fourth Proportional to 415,539.60, 624,000.60 and 228,685.20

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Solution

The fourth proportional to 415,539.60, 624,000.60 and 228,685.20 is: 343,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,539.60 : 624,000.60 = 228,685.20 : x
  2. Step 2: Convert to fraction form
    415,539.60/624,000.60 = 228,685.20/x
  3. Step 3: Cross multiply
    415,539.60x = 624,000.60 × 228,685.20
  4. Step 4: Simplify right side
    415,539.60x = 142,699,702,011.12
  5. Step 5: Solve for x
    x = 142,699,702,011.12/415,539.60
  6. Step 6: Final answer
    x = 343,408.19

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1.5x scale

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.