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Finding the Fourth Proportional to 519,280.80, 779,266.80 and 294,640.80

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Solution

The fourth proportional to 519,280.80, 779,266.80 and 294,640.80 is: 442,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,280.80 : 779,266.80 = 294,640.80 : x
  2. Step 2: Convert to fraction form
    519,280.80/779,266.80 = 294,640.80/x
  3. Step 3: Cross multiply
    519,280.80x = 779,266.80 × 294,640.80
  4. Step 4: Simplify right side
    519,280.80x = 229,603,793,365.44
  5. Step 5: Solve for x
    x = 229,603,793,365.44/519,280.80
  6. Step 6: Final answer
    x = 442,157.29

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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.