Home / 1,039,614.40-1,560,296.40-408,980.80

Finding the Fourth Proportional to 1,039,614.40, 1,560,296.40 and 408,980.80

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Solution

The fourth proportional to 1,039,614.40, 1,560,296.40 and 408,980.80 is: 613,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,614.40 : 1,560,296.40 = 408,980.80 : x
  2. Step 2: Convert to fraction form
    1,039,614.40/1,560,296.40 = 408,980.80/x
  3. Step 3: Cross multiply
    1,039,614.40x = 1,560,296.40 × 408,980.80
  4. Step 4: Simplify right side
    1,039,614.40x = 638,131,269,909.12
  5. Step 5: Solve for x
    x = 638,131,269,909.12/1,039,614.40
  6. Step 6: Final answer
    x = 613,815.34

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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.