Home / 763,365.20-1,143,303.76-364,286.20

Finding the Fourth Proportional to 763,365.20, 1,143,303.76 and 364,286.20

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Solution

The fourth proportional to 763,365.20, 1,143,303.76 and 364,286.20 is: 545,597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,365.20 : 1,143,303.76 = 364,286.20 : x
  2. Step 2: Convert to fraction form
    763,365.20/1,143,303.76 = 364,286.20/x
  3. Step 3: Cross multiply
    763,365.20x = 1,143,303.76 × 364,286.20
  4. Step 4: Simplify right side
    763,365.20x = 416,489,782,176.11
  5. Step 5: Solve for x
    x = 416,489,782,176.11/763,365.20
  6. Step 6: Final answer
    x = 545,597.03

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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.