Home / 448,001.70-672,002.55-412,232.10

Finding the Fourth Proportional to 448,001.70, 672,002.55 and 412,232.10

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Solution

The fourth proportional to 448,001.70, 672,002.55 and 412,232.10 is: 618,348.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,001.70 : 672,002.55 = 412,232.10 : x
  2. Step 2: Convert to fraction form
    448,001.70/672,002.55 = 412,232.10/x
  3. Step 3: Cross multiply
    448,001.70x = 672,002.55 × 412,232.10
  4. Step 4: Simplify right side
    448,001.70x = 277,021,022,391.86
  5. Step 5: Solve for x
    x = 277,021,022,391.86/448,001.70
  6. Step 6: Final answer
    x = 618,348.15

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Similar ratio
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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.