Home / 447,738.80-671,608.20-314,769.20

Finding the Fourth Proportional to 447,738.80, 671,608.20 and 314,769.20

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Solution

The fourth proportional to 447,738.80, 671,608.20 and 314,769.20 is: 472,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,738.80 : 671,608.20 = 314,769.20 : x
  2. Step 2: Convert to fraction form
    447,738.80/671,608.20 = 314,769.20/x
  3. Step 3: Cross multiply
    447,738.80x = 671,608.20 × 314,769.20
  4. Step 4: Simplify right side
    447,738.80x = 211,401,575,827.44
  5. Step 5: Solve for x
    x = 211,401,575,827.44/447,738.80
  6. Step 6: Final answer
    x = 472,153.80

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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.