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Finding the Fourth Proportional to 465,457.60, 698,186.40 and 443,806.30

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Solution

The fourth proportional to 465,457.60, 698,186.40 and 443,806.30 is: 665,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,457.60 : 698,186.40 = 443,806.30 : x
  2. Step 2: Convert to fraction form
    465,457.60/698,186.40 = 443,806.30/x
  3. Step 3: Cross multiply
    465,457.60x = 698,186.40 × 443,806.30
  4. Step 4: Simplify right side
    465,457.60x = 309,859,522,894.32
  5. Step 5: Solve for x
    x = 309,859,522,894.32/465,457.60
  6. Step 6: Final answer
    x = 665,709.45

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Similar ratio
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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.