Home / 354,423.24-531,884.16-320,543.64

Finding the Fourth Proportional to 354,423.24, 531,884.16 and 320,543.64

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Solution

The fourth proportional to 354,423.24, 531,884.16 and 320,543.64 is: 481,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,423.24 : 531,884.16 = 320,543.64 : x
  2. Step 2: Convert to fraction form
    354,423.24/531,884.16 = 320,543.64/x
  3. Step 3: Cross multiply
    354,423.24x = 531,884.16 × 320,543.64
  4. Step 4: Simplify right side
    354,423.24x = 170,492,084,704.74
  5. Step 5: Solve for x
    x = 170,492,084,704.74/354,423.24
  6. Step 6: Final answer
    x = 481,040.93

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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.