Home / 447,748.80-671,623.20-443,601.60

Finding the Fourth Proportional to 447,748.80, 671,623.20 and 443,601.60

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Solution

The fourth proportional to 447,748.80, 671,623.20 and 443,601.60 is: 665,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,748.80 : 671,623.20 = 443,601.60 : x
  2. Step 2: Convert to fraction form
    447,748.80/671,623.20 = 443,601.60/x
  3. Step 3: Cross multiply
    447,748.80x = 671,623.20 × 443,601.60
  4. Step 4: Simplify right side
    447,748.80x = 297,933,126,117.12
  5. Step 5: Solve for x
    x = 297,933,126,117.12/447,748.80
  6. Step 6: Final answer
    x = 665,402.40

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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.