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Finding the Fourth Proportional to 503,068.35, 694,220.70 and 285,316.96

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Solution

The fourth proportional to 503,068.35, 694,220.70 and 285,316.96 is: 393,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,068.35 : 694,220.70 = 285,316.96 : x
  2. Step 2: Convert to fraction form
    503,068.35/694,220.70 = 285,316.96/x
  3. Step 3: Cross multiply
    503,068.35x = 694,220.70 × 285,316.96
  4. Step 4: Simplify right side
    503,068.35x = 198,072,939,027.46
  5. Step 5: Solve for x
    x = 198,072,939,027.46/503,068.35
  6. Step 6: Final answer
    x = 393,729.68

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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.