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Finding the Fourth Proportional to 685,965.60, 1,030,114.80 and 508,672.80

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Solution

The fourth proportional to 685,965.60, 1,030,114.80 and 508,672.80 is: 763,874.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,965.60 : 1,030,114.80 = 508,672.80 : x
  2. Step 2: Convert to fraction form
    685,965.60/1,030,114.80 = 508,672.80/x
  3. Step 3: Cross multiply
    685,965.60x = 1,030,114.80 × 508,672.80
  4. Step 4: Simplify right side
    685,965.60x = 523,991,379,637.44
  5. Step 5: Solve for x
    x = 523,991,379,637.44/685,965.60
  6. Step 6: Final answer
    x = 763,874.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.