Home / 526,078.20-789,117.30-337,121.40

Finding the Fourth Proportional to 526,078.20, 789,117.30 and 337,121.40

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Solution

The fourth proportional to 526,078.20, 789,117.30 and 337,121.40 is: 505,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,078.20 : 789,117.30 = 337,121.40 : x
  2. Step 2: Convert to fraction form
    526,078.20/789,117.30 = 337,121.40/x
  3. Step 3: Cross multiply
    526,078.20x = 789,117.30 × 337,121.40
  4. Step 4: Simplify right side
    526,078.20x = 266,028,328,940.22
  5. Step 5: Solve for x
    x = 266,028,328,940.22/526,078.20
  6. Step 6: Final answer
    x = 505,682.10

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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.