Home / 786,742.20-1,085,672.70-464,556.06

Finding the Fourth Proportional to 786,742.20, 1,085,672.70 and 464,556.06

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Solution

The fourth proportional to 786,742.20, 1,085,672.70 and 464,556.06 is: 641,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,742.20 : 1,085,672.70 = 464,556.06 : x
  2. Step 2: Convert to fraction form
    786,742.20/1,085,672.70 = 464,556.06/x
  3. Step 3: Cross multiply
    786,742.20x = 1,085,672.70 × 464,556.06
  4. Step 4: Simplify right side
    786,742.20x = 504,355,831,961.56
  5. Step 5: Solve for x
    x = 504,355,831,961.56/786,742.20
  6. Step 6: Final answer
    x = 641,068.74

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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.