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Finding the Fourth Proportional to 534,818.72, 802,020.72 and 285,364.64

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Solution

The fourth proportional to 534,818.72, 802,020.72 and 285,364.64 is: 427,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,818.72 : 802,020.72 = 285,364.64 : x
  2. Step 2: Convert to fraction form
    534,818.72/802,020.72 = 285,364.64/x
  3. Step 3: Cross multiply
    534,818.72x = 802,020.72 × 285,364.64
  4. Step 4: Simplify right side
    534,818.72x = 228,868,354,035.34
  5. Step 5: Solve for x
    x = 228,868,354,035.34/534,818.72
  6. Step 6: Final answer
    x = 427,936.32

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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.