Home / 789,193.60-1,184,276.40-340,129.60

Finding the Fourth Proportional to 789,193.60, 1,184,276.40 and 340,129.60

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Solution

The fourth proportional to 789,193.60, 1,184,276.40 and 340,129.60 is: 510,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,193.60 : 1,184,276.40 = 340,129.60 : x
  2. Step 2: Convert to fraction form
    789,193.60/1,184,276.40 = 340,129.60/x
  3. Step 3: Cross multiply
    789,193.60x = 1,184,276.40 × 340,129.60
  4. Step 4: Simplify right side
    789,193.60x = 402,807,458,221.44
  5. Step 5: Solve for x
    x = 402,807,458,221.44/789,193.60
  6. Step 6: Final answer
    x = 510,403.86

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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.