Home / 448,145.40-672,218.10-410,820.60

Finding the Fourth Proportional to 448,145.40, 672,218.10 and 410,820.60

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Solution

The fourth proportional to 448,145.40, 672,218.10 and 410,820.60 is: 616,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,145.40 : 672,218.10 = 410,820.60 : x
  2. Step 2: Convert to fraction form
    448,145.40/672,218.10 = 410,820.60/x
  3. Step 3: Cross multiply
    448,145.40x = 672,218.10 × 410,820.60
  4. Step 4: Simplify right side
    448,145.40x = 276,161,043,172.86
  5. Step 5: Solve for x
    x = 276,161,043,172.86/448,145.40
  6. Step 6: Final answer
    x = 616,230.90

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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.