Home / 868,837.60-1,303,256.40-418,186

Finding the Fourth Proportional to 868,837.60, 1,303,256.40 and 418,186

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Solution

The fourth proportional to 868,837.60, 1,303,256.40 and 418,186 is: 627,279

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,837.60 : 1,303,256.40 = 418,186 : x
  2. Step 2: Convert to fraction form
    868,837.60/1,303,256.40 = 418,186/x
  3. Step 3: Cross multiply
    868,837.60x = 1,303,256.40 × 418,186
  4. Step 4: Simplify right side
    868,837.60x = 545,003,580,890.40
  5. Step 5: Solve for x
    x = 545,003,580,890.40/868,837.60
  6. Step 6: Final answer
    x = 627,279

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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.