Home / 486,929.20-731,268.60-353,959.60

Finding the Fourth Proportional to 486,929.20, 731,268.60 and 353,959.60

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Solution

The fourth proportional to 486,929.20, 731,268.60 and 353,959.60 is: 531,575.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,929.20 : 731,268.60 = 353,959.60 : x
  2. Step 2: Convert to fraction form
    486,929.20/731,268.60 = 353,959.60/x
  3. Step 3: Cross multiply
    486,929.20x = 731,268.60 × 353,959.60
  4. Step 4: Simplify right side
    486,929.20x = 258,839,541,148.56
  5. Step 5: Solve for x
    x = 258,839,541,148.56/486,929.20
  6. Step 6: Final answer
    x = 531,575.31

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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.