Home / 777,108.78-1,165,609.62-477,635.58

Finding the Fourth Proportional to 777,108.78, 1,165,609.62 and 477,635.58

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Solution

The fourth proportional to 777,108.78, 1,165,609.62 and 477,635.58 is: 716,420.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,108.78 : 1,165,609.62 = 477,635.58 : x
  2. Step 2: Convert to fraction form
    777,108.78/1,165,609.62 = 477,635.58/x
  3. Step 3: Cross multiply
    777,108.78x = 1,165,609.62 × 477,635.58
  4. Step 4: Simplify right side
    777,108.78x = 556,736,626,902.28
  5. Step 5: Solve for x
    x = 556,736,626,902.28/777,108.78
  6. Step 6: Final answer
    x = 716,420.46

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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.