Home / 672,198.40-1,008,297.60-609,990.40

Finding the Fourth Proportional to 672,198.40, 1,008,297.60 and 609,990.40

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Solution

The fourth proportional to 672,198.40, 1,008,297.60 and 609,990.40 is: 914,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,198.40 : 1,008,297.60 = 609,990.40 : x
  2. Step 2: Convert to fraction form
    672,198.40/1,008,297.60 = 609,990.40/x
  3. Step 3: Cross multiply
    672,198.40x = 1,008,297.60 × 609,990.40
  4. Step 4: Simplify right side
    672,198.40x = 615,051,856,343.04
  5. Step 5: Solve for x
    x = 615,051,856,343.04/672,198.40
  6. Step 6: Final answer
    x = 914,985.60

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Double scale
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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.