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Finding the Fourth Proportional to 448,064.80, 672,097.20 and 413,850.40

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Solution

The fourth proportional to 448,064.80, 672,097.20 and 413,850.40 is: 620,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,064.80 : 672,097.20 = 413,850.40 : x
  2. Step 2: Convert to fraction form
    448,064.80/672,097.20 = 413,850.40/x
  3. Step 3: Cross multiply
    448,064.80x = 672,097.20 × 413,850.40
  4. Step 4: Simplify right side
    448,064.80x = 278,147,695,058.88
  5. Step 5: Solve for x
    x = 278,147,695,058.88/448,064.80
  6. Step 6: Final answer
    x = 620,775.60

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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.