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Finding the Fourth Proportional to 886,999.60, 1,330,499.40 and 413,732.80

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Solution

The fourth proportional to 886,999.60, 1,330,499.40 and 413,732.80 is: 620,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,999.60 : 1,330,499.40 = 413,732.80 : x
  2. Step 2: Convert to fraction form
    886,999.60/1,330,499.40 = 413,732.80/x
  3. Step 3: Cross multiply
    886,999.60x = 1,330,499.40 × 413,732.80
  4. Step 4: Simplify right side
    886,999.60x = 550,471,242,160.32
  5. Step 5: Solve for x
    x = 550,471,242,160.32/886,999.60
  6. Step 6: Final answer
    x = 620,599.20

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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.