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Finding the Fourth Proportional to 465,765.40, 698,648.10 and 324,047.80

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Solution

The fourth proportional to 465,765.40, 698,648.10 and 324,047.80 is: 486,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,765.40 : 698,648.10 = 324,047.80 : x
  2. Step 2: Convert to fraction form
    465,765.40/698,648.10 = 324,047.80/x
  3. Step 3: Cross multiply
    465,765.40x = 698,648.10 × 324,047.80
  4. Step 4: Simplify right side
    465,765.40x = 226,395,379,779.18
  5. Step 5: Solve for x
    x = 226,395,379,779.18/465,765.40
  6. Step 6: Final answer
    x = 486,071.70

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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.