Home / 1,109,939.80-1,664,180.70-435,614.80

Finding the Fourth Proportional to 1,109,939.80, 1,664,180.70 and 435,614.80

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Solution

The fourth proportional to 1,109,939.80, 1,664,180.70 and 435,614.80 is: 653,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,939.80 : 1,664,180.70 = 435,614.80 : x
  2. Step 2: Convert to fraction form
    1,109,939.80/1,664,180.70 = 435,614.80/x
  3. Step 3: Cross multiply
    1,109,939.80x = 1,664,180.70 × 435,614.80
  4. Step 4: Simplify right side
    1,109,939.80x = 724,941,742,794.36
  5. Step 5: Solve for x
    x = 724,941,742,794.36/1,109,939.80
  6. Step 6: Final answer
    x = 653,136.09

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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.