Home / 625,739.85-863,538.00-353,848.43

Finding the Fourth Proportional to 625,739.85, 863,538.00 and 353,848.43

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Solution

The fourth proportional to 625,739.85, 863,538.00 and 353,848.43 is: 488,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,739.85 : 863,538.00 = 353,848.43 : x
  2. Step 2: Convert to fraction form
    625,739.85/863,538.00 = 353,848.43/x
  3. Step 3: Cross multiply
    625,739.85x = 863,538.00 × 353,848.43
  4. Step 4: Simplify right side
    625,739.85x = 305,561,566,377.25
  5. Step 5: Solve for x
    x = 305,561,566,377.25/625,739.85
  6. Step 6: Final answer
    x = 488,320.45

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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.