Home / 723,874.80-1,085,784.93-218,422.34

Finding the Fourth Proportional to 723,874.80, 1,085,784.93 and 218,422.34

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Solution

The fourth proportional to 723,874.80, 1,085,784.93 and 218,422.34 is: 327,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,874.80 : 1,085,784.93 = 218,422.34 : x
  2. Step 2: Convert to fraction form
    723,874.80/1,085,784.93 = 218,422.34/x
  3. Step 3: Cross multiply
    723,874.80x = 1,085,784.93 × 218,422.34
  4. Step 4: Simplify right side
    723,874.80x = 237,159,685,147.34
  5. Step 5: Solve for x
    x = 237,159,685,147.34/723,874.80
  6. Step 6: Final answer
    x = 327,625.28

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1.5x scale

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.