Home / 788,809.60-1,183,214.40-339,745.60

Finding the Fourth Proportional to 788,809.60, 1,183,214.40 and 339,745.60

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Solution

The fourth proportional to 788,809.60, 1,183,214.40 and 339,745.60 is: 509,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,809.60 : 1,183,214.40 = 339,745.60 : x
  2. Step 2: Convert to fraction form
    788,809.60/1,183,214.40 = 339,745.60/x
  3. Step 3: Cross multiply
    788,809.60x = 1,183,214.40 × 339,745.60
  4. Step 4: Simplify right side
    788,809.60x = 401,991,886,256.64
  5. Step 5: Solve for x
    x = 401,991,886,256.64/788,809.60
  6. Step 6: Final answer
    x = 509,618.40

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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.