Home / 1,040,429.80-1,560,011.10-408,586.60

Finding the Fourth Proportional to 1,040,429.80, 1,560,011.10 and 408,586.60

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Solution

The fourth proportional to 1,040,429.80, 1,560,011.10 and 408,586.60 is: 612,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,429.80 : 1,560,011.10 = 408,586.60 : x
  2. Step 2: Convert to fraction form
    1,040,429.80/1,560,011.10 = 408,586.60/x
  3. Step 3: Cross multiply
    1,040,429.80x = 1,560,011.10 × 408,586.60
  4. Step 4: Simplify right side
    1,040,429.80x = 637,399,631,311.26
  5. Step 5: Solve for x
    x = 637,399,631,311.26/1,040,429.80
  6. Step 6: Final answer
    x = 612,631.08

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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.