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Finding the Fourth Proportional to 536,930.80, 806,010.60 and 315,439.60

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Solution

The fourth proportional to 536,930.80, 806,010.60 and 315,439.60 is: 473,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,930.80 : 806,010.60 = 315,439.60 : x
  2. Step 2: Convert to fraction form
    536,930.80/806,010.60 = 315,439.60/x
  3. Step 3: Cross multiply
    536,930.80x = 806,010.60 × 315,439.60
  4. Step 4: Simplify right side
    536,930.80x = 254,247,661,259.76
  5. Step 5: Solve for x
    x = 254,247,661,259.76/536,930.80
  6. Step 6: Final answer
    x = 473,520.35

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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.