Home / 912,138.60-1,258,742.82-504,265.80

Finding the Fourth Proportional to 912,138.60, 1,258,742.82 and 504,265.80

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Solution

The fourth proportional to 912,138.60, 1,258,742.82 and 504,265.80 is: 695,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,138.60 : 1,258,742.82 = 504,265.80 : x
  2. Step 2: Convert to fraction form
    912,138.60/1,258,742.82 = 504,265.80/x
  3. Step 3: Cross multiply
    912,138.60x = 1,258,742.82 × 504,265.80
  4. Step 4: Simplify right side
    912,138.60x = 634,740,955,121.56
  5. Step 5: Solve for x
    x = 634,740,955,121.56/912,138.60
  6. Step 6: Final answer
    x = 695,882.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.