Home / 650,849.34-898,261.53-392,739.60

Finding the Fourth Proportional to 650,849.34, 898,261.53 and 392,739.60

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Solution

The fourth proportional to 650,849.34, 898,261.53 and 392,739.60 is: 542,034.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,849.34 : 898,261.53 = 392,739.60 : x
  2. Step 2: Convert to fraction form
    650,849.34/898,261.53 = 392,739.60/x
  3. Step 3: Cross multiply
    650,849.34x = 898,261.53 × 392,739.60
  4. Step 4: Simplify right side
    650,849.34x = 352,782,873,987.59
  5. Step 5: Solve for x
    x = 352,782,873,987.59/650,849.34
  6. Step 6: Final answer
    x = 542,034.62

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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.