Home / 808,220.22-1,212,330.32-358,835.46

Finding the Fourth Proportional to 808,220.22, 1,212,330.32 and 358,835.46

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Solution

The fourth proportional to 808,220.22, 1,212,330.32 and 358,835.46 is: 538,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,220.22 : 1,212,330.32 = 358,835.46 : x
  2. Step 2: Convert to fraction form
    808,220.22/1,212,330.32 = 358,835.46/x
  3. Step 3: Cross multiply
    808,220.22x = 1,212,330.32 × 358,835.46
  4. Step 4: Simplify right side
    808,220.22x = 435,027,108,049.15
  5. Step 5: Solve for x
    x = 435,027,108,049.15/808,220.22
  6. Step 6: Final answer
    x = 538,253.19

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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.