Home / 448,001.20-672,001.80-412,231.60

Finding the Fourth Proportional to 448,001.20, 672,001.80 and 412,231.60

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Solution

The fourth proportional to 448,001.20, 672,001.80 and 412,231.60 is: 618,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,001.20 : 672,001.80 = 412,231.60 : x
  2. Step 2: Convert to fraction form
    448,001.20/672,001.80 = 412,231.60/x
  3. Step 3: Cross multiply
    448,001.20x = 672,001.80 × 412,231.60
  4. Step 4: Simplify right side
    448,001.20x = 277,020,377,216.88
  5. Step 5: Solve for x
    x = 277,020,377,216.88/448,001.20
  6. Step 6: Final answer
    x = 618,347.40

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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.