Home / 899,399.60-1,241,150.28-491,483.60

Finding the Fourth Proportional to 899,399.60, 1,241,150.28 and 491,483.60

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Solution

The fourth proportional to 899,399.60, 1,241,150.28 and 491,483.60 is: 678,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,399.60 : 1,241,150.28 = 491,483.60 : x
  2. Step 2: Convert to fraction form
    899,399.60/1,241,150.28 = 491,483.60/x
  3. Step 3: Cross multiply
    899,399.60x = 1,241,150.28 × 491,483.60
  4. Step 4: Simplify right side
    899,399.60x = 610,005,007,755.41
  5. Step 5: Solve for x
    x = 610,005,007,755.41/899,399.60
  6. Step 6: Final answer
    x = 678,235.80

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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.