Home / 685,928.90-1,028,893.35-496,972.10

Finding the Fourth Proportional to 685,928.90, 1,028,893.35 and 496,972.10

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Solution

The fourth proportional to 685,928.90, 1,028,893.35 and 496,972.10 is: 745,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,928.90 : 1,028,893.35 = 496,972.10 : x
  2. Step 2: Convert to fraction form
    685,928.90/1,028,893.35 = 496,972.10/x
  3. Step 3: Cross multiply
    685,928.90x = 1,028,893.35 × 496,972.10
  4. Step 4: Simplify right side
    685,928.90x = 511,331,288,825.54
  5. Step 5: Solve for x
    x = 511,331,288,825.54/685,928.90
  6. Step 6: Final answer
    x = 745,458.15

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Similar ratio
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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.