Home / 1,040,439.80-1,558,035.30-830,487.80

Finding the Fourth Proportional to 1,040,439.80, 1,558,035.30 and 830,487.80

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Solution

The fourth proportional to 1,040,439.80, 1,558,035.30 and 830,487.80 is: 1,243,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,439.80 : 1,558,035.30 = 830,487.80 : x
  2. Step 2: Convert to fraction form
    1,040,439.80/1,558,035.30 = 830,487.80/x
  3. Step 3: Cross multiply
    1,040,439.80x = 1,558,035.30 × 830,487.80
  4. Step 4: Simplify right side
    1,040,439.80x = 1,293,929,308,619.34
  5. Step 5: Solve for x
    x = 1,293,929,308,619.34/1,040,439.80
  6. Step 6: Final answer
    x = 1,243,636.88

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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.