Home / 1,109,940.80-1,664,237-435,213.72

Finding the Fourth Proportional to 1,109,940.80, 1,664,237 and 435,213.72

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Solution

The fourth proportional to 1,109,940.80, 1,664,237 and 435,213.72 is: 652,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,940.80 : 1,664,237 = 435,213.72 : x
  2. Step 2: Convert to fraction form
    1,109,940.80/1,664,237 = 435,213.72/x
  3. Step 3: Cross multiply
    1,109,940.80x = 1,664,237 × 435,213.72
  4. Step 4: Simplify right side
    1,109,940.80x = 724,298,775,731.64
  5. Step 5: Solve for x
    x = 724,298,775,731.64/1,109,940.80
  6. Step 6: Final answer
    x = 652,556.22

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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.