Home / 448,081.10-672,121.65-406,609.10

Finding the Fourth Proportional to 448,081.10, 672,121.65 and 406,609.10

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Solution

The fourth proportional to 448,081.10, 672,121.65 and 406,609.10 is: 609,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,081.10 : 672,121.65 = 406,609.10 : x
  2. Step 2: Convert to fraction form
    448,081.10/672,121.65 = 406,609.10/x
  3. Step 3: Cross multiply
    448,081.10x = 672,121.65 × 406,609.10
  4. Step 4: Simplify right side
    448,081.10x = 273,290,779,197.02
  5. Step 5: Solve for x
    x = 273,290,779,197.02/448,081.10
  6. Step 6: Final answer
    x = 609,913.65

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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.