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Finding the Fourth Proportional to 988,896.60, 1,483,344.90 and 357,662.79

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Solution

The fourth proportional to 988,896.60, 1,483,344.90 and 357,662.79 is: 536,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,896.60 : 1,483,344.90 = 357,662.79 : x
  2. Step 2: Convert to fraction form
    988,896.60/1,483,344.90 = 357,662.79/x
  3. Step 3: Cross multiply
    988,896.60x = 1,483,344.90 × 357,662.79
  4. Step 4: Simplify right side
    988,896.60x = 530,537,275,466.27
  5. Step 5: Solve for x
    x = 530,537,275,466.27/988,896.60
  6. Step 6: Final answer
    x = 536,494.19

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.