Home / 789,543.20-1,183,537.20-390,245.60

Finding the Fourth Proportional to 789,543.20, 1,183,537.20 and 390,245.60

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Solution

The fourth proportional to 789,543.20, 1,183,537.20 and 390,245.60 is: 584,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,543.20 : 1,183,537.20 = 390,245.60 : x
  2. Step 2: Convert to fraction form
    789,543.20/1,183,537.20 = 390,245.60/x
  3. Step 3: Cross multiply
    789,543.20x = 1,183,537.20 × 390,245.60
  4. Step 4: Simplify right side
    789,543.20x = 461,870,184,736.32
  5. Step 5: Solve for x
    x = 461,870,184,736.32/789,543.20
  6. Step 6: Final answer
    x = 584,984.06

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Half scale
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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.