Home / 874,556.80-1,312,418.40-400,998.40

Finding the Fourth Proportional to 874,556.80, 1,312,418.40 and 400,998.40

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Solution

The fourth proportional to 874,556.80, 1,312,418.40 and 400,998.40 is: 601,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,556.80 : 1,312,418.40 = 400,998.40 : x
  2. Step 2: Convert to fraction form
    874,556.80/1,312,418.40 = 400,998.40/x
  3. Step 3: Cross multiply
    874,556.80x = 1,312,418.40 × 400,998.40
  4. Step 4: Simplify right side
    874,556.80x = 526,277,678,530.56
  5. Step 5: Solve for x
    x = 526,277,678,530.56/874,556.80
  6. Step 6: Final answer
    x = 601,765.01

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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.