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Finding the Fourth Proportional to 626,558.96, 864,445.50 and 354,599.84

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Solution

The fourth proportional to 626,558.96, 864,445.50 and 354,599.84 is: 489,231.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,558.96 : 864,445.50 = 354,599.84 : x
  2. Step 2: Convert to fraction form
    626,558.96/864,445.50 = 354,599.84/x
  3. Step 3: Cross multiply
    626,558.96x = 864,445.50 × 354,599.84
  4. Step 4: Simplify right side
    626,558.96x = 306,532,235,988.72
  5. Step 5: Solve for x
    x = 306,532,235,988.72/626,558.96
  6. Step 6: Final answer
    x = 489,231.27

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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.