Home / 899,368.53-1,241,144.82-491,487.56

Finding the Fourth Proportional to 899,368.53, 1,241,144.82 and 491,487.56

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Solution

The fourth proportional to 899,368.53, 1,241,144.82 and 491,487.56 is: 678,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,368.53 : 1,241,144.82 = 491,487.56 : x
  2. Step 2: Convert to fraction form
    899,368.53/1,241,144.82 = 491,487.56/x
  3. Step 3: Cross multiply
    899,368.53x = 1,241,144.82 × 491,487.56
  4. Step 4: Simplify right side
    899,368.53x = 610,007,232,982.72
  5. Step 5: Solve for x
    x = 610,007,232,982.72/899,368.53
  6. Step 6: Final answer
    x = 678,261.71

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Double scale
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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.