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Finding the Fourth Proportional to 569,800.80, 854,701.20 and 320,450.40

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Solution

The fourth proportional to 569,800.80, 854,701.20 and 320,450.40 is: 480,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,800.80 : 854,701.20 = 320,450.40 : x
  2. Step 2: Convert to fraction form
    569,800.80/854,701.20 = 320,450.40/x
  3. Step 3: Cross multiply
    569,800.80x = 854,701.20 × 320,450.40
  4. Step 4: Simplify right side
    569,800.80x = 273,889,341,420.48
  5. Step 5: Solve for x
    x = 273,889,341,420.48/569,800.80
  6. Step 6: Final answer
    x = 480,675.60

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Similar ratio
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1.5x scale

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.