Home / 526,742.40-789,919.20-260,414.40

Finding the Fourth Proportional to 526,742.40, 789,919.20 and 260,414.40

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Solution

The fourth proportional to 526,742.40, 789,919.20 and 260,414.40 is: 390,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,742.40 : 789,919.20 = 260,414.40 : x
  2. Step 2: Convert to fraction form
    526,742.40/789,919.20 = 260,414.40/x
  3. Step 3: Cross multiply
    526,742.40x = 789,919.20 × 260,414.40
  4. Step 4: Simplify right side
    526,742.40x = 205,706,334,516.48
  5. Step 5: Solve for x
    x = 205,706,334,516.48/526,742.40
  6. Step 6: Final answer
    x = 390,525.49

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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.