Home / 789,780.60-1,184,325.30-316,308.60

Finding the Fourth Proportional to 789,780.60, 1,184,325.30 and 316,308.60

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Solution

The fourth proportional to 789,780.60, 1,184,325.30 and 316,308.60 is: 474,324.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,780.60 : 1,184,325.30 = 316,308.60 : x
  2. Step 2: Convert to fraction form
    789,780.60/1,184,325.30 = 316,308.60/x
  3. Step 3: Cross multiply
    789,780.60x = 1,184,325.30 × 316,308.60
  4. Step 4: Simplify right side
    789,780.60x = 374,612,277,587.58
  5. Step 5: Solve for x
    x = 374,612,277,587.58/789,780.60
  6. Step 6: Final answer
    x = 474,324.49

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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.