Home / 448,103.20-672,154.80-399,114.40

Finding the Fourth Proportional to 448,103.20, 672,154.80 and 399,114.40

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Solution

The fourth proportional to 448,103.20, 672,154.80 and 399,114.40 is: 598,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,103.20 : 672,154.80 = 399,114.40 : x
  2. Step 2: Convert to fraction form
    448,103.20/672,154.80 = 399,114.40/x
  3. Step 3: Cross multiply
    448,103.20x = 672,154.80 × 399,114.40
  4. Step 4: Simplify right side
    448,103.20x = 268,266,659,709.12
  5. Step 5: Solve for x
    x = 268,266,659,709.12/448,103.20
  6. Step 6: Final answer
    x = 598,671.60

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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.