Home / 899,690.79-1,241,573.36-491,794.25

Finding the Fourth Proportional to 899,690.79, 1,241,573.36 and 491,794.25

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Solution

The fourth proportional to 899,690.79, 1,241,573.36 and 491,794.25 is: 678,676.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,690.79 : 1,241,573.36 = 491,794.25 : x
  2. Step 2: Convert to fraction form
    899,690.79/1,241,573.36 = 491,794.25/x
  3. Step 3: Cross multiply
    899,690.79x = 1,241,573.36 × 491,794.25
  4. Step 4: Simplify right side
    899,690.79x = 610,598,630,734.34
  5. Step 5: Solve for x
    x = 610,598,630,734.34/899,690.79
  6. Step 6: Final answer
    x = 678,676.09

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Double scale
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Similar ratio
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1.5x scale

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.