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Finding the Fourth Proportional to 576,133.20, 863,940.60 and 260,427.60

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Solution

The fourth proportional to 576,133.20, 863,940.60 and 260,427.60 is: 390,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,133.20 : 863,940.60 = 260,427.60 : x
  2. Step 2: Convert to fraction form
    576,133.20/863,940.60 = 260,427.60/x
  3. Step 3: Cross multiply
    576,133.20x = 863,940.60 × 260,427.60
  4. Step 4: Simplify right side
    576,133.20x = 224,993,977,000.56
  5. Step 5: Solve for x
    x = 224,993,977,000.56/576,133.20
  6. Step 6: Final answer
    x = 390,524.23

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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.