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Finding the Fourth Proportional to 826,291.80, 1,239,364.80 and 227,199.60

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Solution

The fourth proportional to 826,291.80, 1,239,364.80 and 227,199.60 is: 340,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,291.80 : 1,239,364.80 = 227,199.60 : x
  2. Step 2: Convert to fraction form
    826,291.80/1,239,364.80 = 227,199.60/x
  3. Step 3: Cross multiply
    826,291.80x = 1,239,364.80 × 227,199.60
  4. Step 4: Simplify right side
    826,291.80x = 281,583,186,814.08
  5. Step 5: Solve for x
    x = 281,583,186,814.08/826,291.80
  6. Step 6: Final answer
    x = 340,779.36

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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.