Home / 355,623.21-533,851.56-280,793.79

Finding the Fourth Proportional to 355,623.21, 533,851.56 and 280,793.79

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Solution

The fourth proportional to 355,623.21, 533,851.56 and 280,793.79 is: 421,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,623.21 : 533,851.56 = 280,793.79 : x
  2. Step 2: Convert to fraction form
    355,623.21/533,851.56 = 280,793.79/x
  3. Step 3: Cross multiply
    355,623.21x = 533,851.56 × 280,793.79
  4. Step 4: Simplify right side
    355,623.21x = 149,902,202,829.81
  5. Step 5: Solve for x
    x = 149,902,202,829.81/355,623.21
  6. Step 6: Final answer
    x = 421,519.74

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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.