Home / 448,001.40-672,002.10-298,702.20

Finding the Fourth Proportional to 448,001.40, 672,002.10 and 298,702.20

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Solution

The fourth proportional to 448,001.40, 672,002.10 and 298,702.20 is: 448,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,001.40 : 672,002.10 = 298,702.20 : x
  2. Step 2: Convert to fraction form
    448,001.40/672,002.10 = 298,702.20/x
  3. Step 3: Cross multiply
    448,001.40x = 672,002.10 × 298,702.20
  4. Step 4: Simplify right side
    448,001.40x = 200,728,505,674.62
  5. Step 5: Solve for x
    x = 200,728,505,674.62/448,001.40
  6. Step 6: Final answer
    x = 448,053.30

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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.