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Finding the Fourth Proportional to 400,104.80, 599,542.80 and 347,266.40

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Solution

The fourth proportional to 400,104.80, 599,542.80 and 347,266.40 is: 520,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,104.80 : 599,542.80 = 347,266.40 : x
  2. Step 2: Convert to fraction form
    400,104.80/599,542.80 = 347,266.40/x
  3. Step 3: Cross multiply
    400,104.80x = 599,542.80 × 347,266.40
  4. Step 4: Simplify right side
    400,104.80x = 208,201,069,801.92
  5. Step 5: Solve for x
    x = 208,201,069,801.92/400,104.80
  6. Step 6: Final answer
    x = 520,366.34

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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.