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Finding the Fourth Proportional to 576,800.40, 865,200.60 and 340,604.40

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Solution

The fourth proportional to 576,800.40, 865,200.60 and 340,604.40 is: 510,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,800.40 : 865,200.60 = 340,604.40 : x
  2. Step 2: Convert to fraction form
    576,800.40/865,200.60 = 340,604.40/x
  3. Step 3: Cross multiply
    576,800.40x = 865,200.60 × 340,604.40
  4. Step 4: Simplify right side
    576,800.40x = 294,691,131,242.64
  5. Step 5: Solve for x
    x = 294,691,131,242.64/576,800.40
  6. Step 6: Final answer
    x = 510,906.60

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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.