Home / 723,144.20-1,084,889.10-348,859.40

Finding the Fourth Proportional to 723,144.20, 1,084,889.10 and 348,859.40

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Solution

The fourth proportional to 723,144.20, 1,084,889.10 and 348,859.40 is: 523,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,144.20 : 1,084,889.10 = 348,859.40 : x
  2. Step 2: Convert to fraction form
    723,144.20/1,084,889.10 = 348,859.40/x
  3. Step 3: Cross multiply
    723,144.20x = 1,084,889.10 × 348,859.40
  4. Step 4: Simplify right side
    723,144.20x = 378,473,760,492.54
  5. Step 5: Solve for x
    x = 378,473,760,492.54/723,144.20
  6. Step 6: Final answer
    x = 523,372.46

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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.