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Finding the Fourth Proportional to 706,409.80, 1,059,614.70 and 422,974.60

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Solution

The fourth proportional to 706,409.80, 1,059,614.70 and 422,974.60 is: 634,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,409.80 : 1,059,614.70 = 422,974.60 : x
  2. Step 2: Convert to fraction form
    706,409.80/1,059,614.70 = 422,974.60/x
  3. Step 3: Cross multiply
    706,409.80x = 1,059,614.70 × 422,974.60
  4. Step 4: Simplify right side
    706,409.80x = 448,190,103,886.62
  5. Step 5: Solve for x
    x = 448,190,103,886.62/706,409.80
  6. Step 6: Final answer
    x = 634,461.90

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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.