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Finding the Fourth Proportional to 550,434.15, 825,651.23 and 400,357.35

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Solution

The fourth proportional to 550,434.15, 825,651.23 and 400,357.35 is: 600,536.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,434.15 : 825,651.23 = 400,357.35 : x
  2. Step 2: Convert to fraction form
    550,434.15/825,651.23 = 400,357.35/x
  3. Step 3: Cross multiply
    550,434.15x = 825,651.23 × 400,357.35
  4. Step 4: Simplify right side
    550,434.15x = 330,555,536,465.25
  5. Step 5: Solve for x
    x = 330,555,536,465.25/550,434.15
  6. Step 6: Final answer
    x = 600,536.03

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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.